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    • 1 CURRICULUM VITAE C.P. HERBST 1. PERSONAL INFORMATION Name : Charles Petrus Herbst Date of birth : 22 July 1955 Place of birth : Bloemfontein Marriage status : Married Family : Married to Ingrid Dreyer Home Adress : Van Laun Cres 29 Fichardtpark 9322 Bloemfontein Telephone : 5228642 Work adress: Dept of Biophysics (G68) University of the OFS P.O. Box 339 9300 Bloemfontein Telephone: 4053157 Citizenship: South African Present Position: Chief Specialist Scientist 2. QUALIFICATIONS: 2.1. School : 1973 OFS Matric, Jim Fouche, Bloemfontein 2.2. University Education 1977 B.Sc. University of the OFS 1979 B. Med. Sc.Hons.(Medical Physics) University of the OFS 1981 M.Med.Sc. (Medical Physics) University of the OFS 1984 Ph.D. (Medical Physics) University of the OFS 2.3. Professional Registration SA Medical and Dental Council 1980 - Present Medical Physicist 3. PROFESSIONAL CAREER 1978 Assistant Expert UOFS/OFS Prov Admin 1980 Expert UOFS/OFS Prov Admin 1982 Senior Expert UOFS/OFS Prov Admin 1986 Medical Physicist
    • 2 UOFS/OFS Prov Admin 1988 Senior Medical Physicist 1990 Specialist Scientist 1992 First Specialist Scientist 1994 Chief Specialist Scientist 4. MEMBERSHIP OF PROFESSIONAL ORGANIZATIONS 4.1. National : 4.1.1.SA Association for Physicist in Medicine and Biology (SAAPMB) 1978-Present Member 1992-1994 Council Member 1996- present Council Member 1997 1998 Vice president 1998 1999 President 2003 – present Treasurer 4.1.2.South African Medical Physics Society 1978-1980 Associate Member 1980-Present Member 1988-1990 Member of the Professional Committee 1991-1992 Secretary 1999 – 2000 Chairman 4.1.3.SA Society of Nuclear Medicine 1984-Present Member 1992-1994 Board Member 5. UNIVERSITY (FACULTY) COMMITTEES 1988 Evaluator of papers delivered at Yearday. 1990-1992 Advice Committee for Medical Scientists. 1993 Yearday Evaluation Committee 1993 Computer Committee (co-opted) 1994 Convenor: Evaluation Committee for Yearday 1994 Member: Yearday Organization Committee 1996 Yearday Evaluation Committee 1996 - 2000 Evaluation Committee: Occupational Therapy students 1996 - 2000 Ethical committee for Animal experiments 1996 -1998 Computer Committee (co-opted) 1998 - 2002 Computer Committee Chairperson 2003 Computer Committee Member 2002 – present Financial Committee 6. MEMBERSHIP OF STATUTORY BOARDS, COMITTEES, ETC
    • 3 7. COMMUNITY SERVICE INVOLVEMENT Informal lectures to the public on the use of the following computer programs: Harvard Graphics Lotus-123 Dos Dbase Formal academic connections (External examiner, lecturer) to: Dept of Education, Technicon OFS, Medunsa, Nursing Colleges, Free State Henrietta Stockdale Nursing College, Kimberley Unitra Advancement of Science: Provincial, National and International Science Fairs 1990 – present Judge at the National Science Expo for young Scientists 1992 – present Judge at the Provincial Science Expo for young Scientists 2000 – present Co-ordinator for Scientific Review Committee at Provincial Science Expo for young Scientists 2000-2003 Member of the Scientific Review Committee of the National Science Expo (selecting National winners) 2003 Grand Awards Judge for Physics at the 2003 Intel International Science and Engineering Fair for young Scientists, Cleveland, Ohio Member of special committees: 1996 Member of the evaluation committee for a National Health Information Tender. 1996 Member of the evaluation committee for a Provincial Welfare Payout Tender. 1996 Member of the evaluation committee for a Provincial Health Network Tender 1997 Coordinator for network tender implementation at Universitas/National/Pelonomi Hospitals. 1998 Coordinator for implementation of a Hospital Information System at Universitas/ Pelonomi/National Hospitals 8. SPECIAL HONORS AND AWARDS 8.1. Local : 1989 Performance award from the OFS Provincial Administration 1991 Best Clinical Paper, Academic Year Day, Medical Faculty, UOFS for “Hemodinamiese interaksie tussen Propofol en Esmolol. Diedericks BJS, Herbst CP, Hundt HKL, Uys NJ, Brummer J” 1991 Best Non-Clinical Paper, Academic Year Day, Medical Faculty, UOFS for “ A new scatter correction technique for radionuclide quantitation. Pretorius PH, van Rensburg AJ, Lötter MG, van Aswegen A, Herbst CP.” 1993 Runner up: Best non-clinical paper, Academic Year Day, Medical Faculty, UOFS for “Die gebruik van ‘n persoonlike rekenaar vir statiese beeldversameling vanaf ‘n gammakamera.” Serfontein DE, Herbst CP, van Aswegen A, Lötter MG.
    • 4 8.2. National : 1984-1986 SA Medical Research Council: Overseas research 1979 SAAPMB Incentive Award for “ Die bepaling van linkerventrikulêre kardiale uitwerpings-fraksie deur EKG radionuklied tegnieke. van Aswegen A, Kleynhans PHT, Lötter MG, Herbst CP, Minnaar PC.” 1982 SAAPMB Incentive award for “ ‘n Vergelyking van eerste en tweede afgeleide randherkenningstegnieke. Herbst CP, Lötter MG, van Aswegen A, Minnaar PC.” 1987 SAAPMB Inovative computer application award for “Digitizing and signal averaging of left ventricular pressure signals using a dedicated radionuclide imaging system. Herbst CP, Dormer KJ, Brackett DJ, Wilson MF, Barkan B, Burow RD.” 1990 CR Jansen Memorial Award from SA Nucl Med Soc. for research contributions by a young researcher. 1991 SAAPMB Innovative computer application award for “Die gebruik van ‘n persoonlike rekenaar vir vinnige dataversameling van kardiologiese data oor ‘n velende versamelperiode. Herbst CP, Diedericks BJS, Uys NJ, Brummer J, Lötter MG.” 1991 SAAPMB Incentive award for “ Versameling van kardiologiese data met behulp van ‘n persoonlike rekenaar: akkuraatheid en stabiliteit. Uys NJ, Herbst CP, Diedericks BJS, Brummer J, Lötter MG.” 1992 SAAPMB Incentive award for “ A simple technique for the measurement of the spatial distribution of the energy spectrum of scattered photons for a 99mTC point source in water. Serfontein DE, Herbst CP, van Aswegen A, Lötter MG, Pretorius PH.” 1992 SA Nucl Med Soc best poster award for “ Verification of a varying threshold edge detection SPECT technique on spleen volume: A comparison to CT Volumes. Pretorius PH, van Aswegen A, Lötter MG, Herbst CP, Nel MG, Otto AC.” 8.3. International: 1986 Veterans Administration Hospital and University of Oklahoma: Visiting Scientist Recognition Award. 1998 Cited in Who’s Who in the World 9. ACADEMIC CONTRIBUTIONS AND INVOLVEMENT 9.1. Training responsibilities Currently responsible for Medical Physics training on pre- and post graduate level for B Occ Ther. (4 years) MB.Ch.B.(I), (4 years) MB. Ch.B (II) (3 years) B.Med.Sc.(Hons), (±22 years) M.Med. (Anesthesiology) (4 year) M.Med (Radiology) (±12 years) Previously involved in lecturing Medical Physics for the following courses:
    • 5 B.Rad (± 7 years) M.Med (Nucl Medicine) (± 4 years) Adviser for Masters- and Doctorate degrees: Supervisor or co-supervisor: 1988 - Mr PH Pretorius (M Med Sc) 1993 - Miss H Naudé (M Med Sc) 1994 – Mr NJ Uys (M.Med. Sc) 1998 – Mr J van Staden (M.Med Sc) 2002 – Miss PA Moleme (M.Med.Sc) Promotor or co-promotor: 1998 – Miss H Naudé (Ph.D) Examiner for Magister and Doctorate degrees: Magister: 1996 – Miss H Burger Acts as examiner for the College of Medicine of South Africa (Anesthesiology as well as Radiology) and as external examiner for the Medical University of Southern Africa and the Technicon OFS. 9.2. Overseas Research Visits. 1985/1986 Cardiology Dept, Oklahoma University, Oklahoma City, USA 9.3. Special invitations (National) 1988 Chair session at SAAPMB Congress 1990 Chair session at SA Nucl Med Soc Congress 1991 Chair session at SAAPMB Congress 1992 Chair session at SAAPMB Congress 1993 Chair session at SAAPMB Congress 1994 Chair session at SAAPMB Summer School 1998 Chair session at SAAPMB Congress 1999 Chair session at SAAPMB Congress 2000 Chair session at SAAPMB Congress 2000 Chair session at SA Nucl Med Soc Congress 2000-2003 Member of the Scientific Review Committee of the National Science Expo (selecting National winners) 9.4. Special invitations (International) 1994 Lecture at Mayo Clinic 1994 Lecture at Duke University 2000 Member of the tripartite working group meeting of the IAEA to review draft regulatory guidance on “Radiation Safety in Nuclear Medicine” 2000 Member of the tripartite working group meeting of the IAEA to review draft regulatory guidance on “Radiation Safety in Diagnostic and Interventional Radiology” 2001 Member of the IAEA task force finalizing the training packages of the IAEA on Radiation protection in Diagnostic Radiology and Nuclear Medicine, Vienna, 26-30 November 2001 RAF/9/022
    • 6 2003 Grand Awards Judge for Physics at the 2003 Intel International Science and Engineering Fair for young Scientists, Cleveland, Ohio 9.5. Editorial involvement (professional or other) 10. REFERENCES AND TESTIMONIALS (WHERE APPLICABLE) Prof MG Lötter, Dept of Biophysics (G68), University of the OFS., P.O. Box 339, Bloemfontein 11. INTERESTS 11.1.Hobbies Photography, Hiking 11.2.Academic interests and service delivery Initial involvement in Nuclear Medicine - and in particular in Nuclear Cardiology - led to an interest and involvement in image quantification as well as the use of personal computers for acquisition of cardiac data. Direct contact with the clinical personnel resulted in a good clinical background and subsequent support in developing as well as implementing new diagnostic procedures. Clinical support in the Diagnostic Radiology department is directed towards support of the quality control programs of the department as well as advice on teleradiology systems and MR systems. Computer skills include the standard MS Office software, QPro, Lotus, Adobe Photoshop and others. Programming languages include Fortran, Basic and Visual Basic with special application in the field of image processing and databases. Other computer skills include a working knowledge of Unix, Novell as well as general networking principles. Interest in general computer applications led to involvement in the implementation of a new hospital information system and supporting infrastructure at Universitas, National and Pelonomi Hospitals. 12. PUBLICATIONS AND CONGRESS CONTRIBUTION SUMMARY 12.1.Publications Chapters in books 6 Journals 38 Popular articles 3 12.2.Congress contributions Local 42 National 80 International 26
    • 7 13. DETAILED PUBLICATION LIST 13.1.Full length articles 13.1.1.Chapters in Books (1) Herbst CP, Lötter MG, Badenhorst PN, Heyns AduP, Minnaar PC, Pieters H, Kotze H, Wessels P, Oelofse R (1982) A comparison of methods of data analysis to evaluate blood platelet survival. Proc. Third World Congress of Nuclear Medicine and Biology, p906- 909 (2) van Aswegen A, Herbst CP, Otto AC, Lötter MG, Kleynhans PHT, Minnaar PC (1982) Determination of right ventricular ejection fraction utilising a radionuclide washout technique. Proc. Third World Congress of Nuclear Medicine and Biology, p 1418 - 1420 (3) van Aswegen A, Herbst CP, Lötter MG, Otto AC, Kleynhans PHT, Minnaar PC (1982). Variation in LVEF determination at rest and during exercise. Proc. “World Congress on Medical Physics and Biomedical Engineering “, Hamburg. (4) Lötter MG, Herbst CP, Badenhorst PN, Heyns A du P, Wessels P, Minnaar PC (1984) Evaluation of models to determine platelet life span and survival curve shape. In: Hardeman MR, Najaen Y, eds. Blood Cells in Nuclear Medicine, Part I: Cell Kinetics and Biodistribution. Amsterdam: Nijhoff, p 139 - 152 (5) Herbst CP, Otto AC, van Aswegen A, Sweetlove A, Strugo V (1987) A comparison of the acute hemodynamic effects of nifedipine and nisoldipine in patients with iscemic reduced left ventricular function. In: Hugenholz PG, Meyer J, eds. Nisoldipine 1987. Springer Verlag, Berlin, p 190 - 194. (6) van Wyk AJ Knoesen O, Fourie PJ, van Aswegen A, Herbst C, Lötter MG (1990) Comparison of a new myocardial agent Tc-99m EMI with Tc-99m- MIBI(MMI) on baboons. In : Nicolini M, Bandoli G, Mazzi U, eds. Technetium and Rhenium in Chemistry and Nuclear Medicine 3. Raven Press, New York, p 761-766 13.1.2.Journals (1) van Aswegen A, Herbst CP, Lötter MG, Otto AC, Kleynhans PHT, and Minnaar PC (1983). Variation in left ventricular ejection fraction determined at rest and during exercise. SA Med J, 63, p 890. (2) Kleynhans PHT, Lötter MG, van Aswegen A, Herbst CP, Marx JD, Minnaar PC (1982). The imaging of myocardial perfusion with 81m-Kr during coronary arteriography. Eur J Nucl Med, 7, p 405. (3) Heyns AduP, Lötter MG, Badenhorst PN, Kotze H, Killian FC, Herbst CP, van Reenen OR, Minnaar PC (1980). Kinetics and in vivo redistribution of 111-Indium-labelled human platelets after intravenous protamine sulphate. Throm Haemostas, 44, p 65. (4) Badenhorst PN, Lötter MG, Heyns AduP, van Reenen OR, Herbst C, Pieters H, Kotze HF, Duyvene de Wit LS, Minnaar PC (1982). The influence of the “collection injury” on the survival and distribution of Indium-111-labelled canine platelets. Br J Haemat, 52, p 233. (5) Heyns AduP, Lötter MG, Badenhorst PN, de Kock FC, Pieters H, Herbst C, van Reenen OR, Kotze H, Minnaar PC (1982). Kinetics and sites of destruction of 111-Indium oxine-labelled platelets in idiopathic
    • 8 thrombocytopenic purpura: A quantitative study. Am J Hemat, 12: 167-177. (6) van Reenen OR, Lötter MG, Heyns AduP, de Kock F, Herbst CP, Pieters H, Minnaar PC, Badenhorst PN (1982). Quantification of the distribution of 111-In-labelled platelets in organs. Eur J Nucl Med, 7, p 80. (7) van Aswegen A, Herbst CP, Otto AC, Lötter MG, Kleynhans PHT, Minnaar PC (1983). Determination of right ventricular ejection fraction utilizing a radionuclide washout technique. Eur J Nucl Med, 8, p 477. (8) Otto AC, van Aswegen A, Herbst CP, Kleynhans PHT, du Toit P, Lötter MG, Minnaar PC, Marx JD (1985) Persistent left superior vena cava detected with radionuclide angiography. Clin Nucl Med, 10, p 27 (9) Theron HdT, Otto AC, van Aswegen A, Herbst CP, Kleynhans PHT, Lötter MG, Minnaar PC, Marx JD (1985). Traumatic aorta vena cava fistula detected with radionuclide angiocardiography. A case report. SA Med J, 68, p 489. (10) van Aswegen A, van Wyk AJ, Roodt JP, Pieters H, Herbst CP, Otto AC, Lötter MG, Haasbroek FJ, Minnaar PC, Fourie PJ (1985) Evaluation of (o)-[77Br}bromohippuran as renal tubular function agent. Int J Appl Radiat Isot, 36, p727. (11) van Aswegen A, Otto AC, Herbst CP, Marx JD, Kleynhans PH, Lötter MG, Minnaar PC (1986) Left ventricular function evaluation using radionuclide methods in the intensive coronary care unit. Radiology, 158, p252. (12) Herbst CP, van Aswegen A, Kleynhans PHT, Otto AC, Lötter MG, Minnaar PC (1986) Radionuclide determination of absolute LV volumes: Interstudy, Interobserver and intraobserver variances. Nucl Med Biol, 13, p43. (13) Heyns AdP, Lötter MG, Badenhorst PN, de Kock F, Pieters H, Herbst C, Nel CJC, Minnaar PC (1982) Kinetics abd fate of Indium- 111-labelled platelets in patients with aortic aneurysms. Arch Surg, 117, p1170- (14) Otto AC, Herbst CP, van Aswegen A, Lötter MG, Minnaar PC, Marx JD, Kleynhans PHT (1987) Absolute left ventricular volume changes after sublingual nitroglycerine and nifedipine intervention. SA. Med. J., 71, p633-636. (15) Herbst CP, Otto AC, van Aswegen A, Sweetlove A, Strugo V (1987) A comparison of the acute hemodynamic effects of nifedipine and nisoldipine in patients with iscemic reduced left ventricular function. Eur. J. Nucl. Med.,13, p72-75. (16) Van Aswegen A, Otto AC, Herbst CP, Marx JD, Kleynhans PHT, Lötter MG, Minnaar CP (1986) Radionuclide evaluation of left ventricular function in a distantly located intensive coronary care unit. SA Med. J, 70, p598-600. (17) Herbst CP, Dormer KJ, Brackett DJ, Wilson MF, Barkan B, Burow RD (1987) Digitizing and signal averaging of left ventricular pressure signals using a dedicated radionuclide imaging system. Eur. J. Nucl. Med., 13, p338-342. (18) Otto AC, van Aswegen A, Herbst CP, Lötter MG, Minnaar PC, Marx LD, Kleynhans PHT (1985) The hemodynamic changes in marathon runners during supine exercise measured with gated blood pool scintigraphy. J. Sports Card., 2, p86-91. (19) Marx JD, van Aswegen A, Kleynhans PHT, Herbst CP, Otto AC, de Wet JI. (1988) Daily serial evaluation of left ventricular function with equilibrium radionuclide ventriculography following thrombolysis during acute myocardial infarction. Clin Cardiol., 11, 665-670.
    • 9 (20) Otto AC, van Aswegen A, Herbst CP, Sweetlove AM, Viviers AC, Flint GR. (1988) The effects of nisoldopine on left ventricular filling rate in patients with ischemic heart disease measured with radionuclide gated blood pool scintigraphy. Eur J Nucl Med., 14, 542-545. (21) van Aswegen A, Pretorius PH, Herbst CP, Lötter MG, Minnaar PC. (1989) The effects of different flood field correction methods on reconstructed SPECT images. Phys Med Biol., 34, 633 - 635. (22) Wilson MF, Sung BH, Herbst CP, Lee RH, Brackett DJ. (1988) Evaluation of left ventricular contractility indexes for the detection of symptomatic and silent myocardial ischemia. Am J Cardiol. 62, 1176 - 1179. (23) van Aswegen A, van Wyk AJ, Herbst CP, Otto AC, Viviers A, Koekemoer J, Knoesen O, Lötter MG, Minnaar PC, Kleynhans PHT, Fourie PJ. (1989) 99mTc Ethoxy methylpropyl isonitrile: A radioacrive tracer for myocardial perfusion imaging. Nucl Med Biol Part B 16, 455-459. (24) Herbst CP, Dunn M, Viviers AC, van Zyl M, van Aswegen A, Otto AC. (1990) ‘n Vergelyking van drie verskillende tegnieke vir die berekening van glomerulêre filtrasiespoed. SA MED J. 78, 266-267 (25) Herbst CP, Theron HduT, van Aswegen A, Kleynhans PHT, Otto AC, Minnaar PC. (1990) A comparison of the clinical relevance of thallium-201 and technetium-99m-methoxyisobutyl-isonitrile for the evaluation of myocardial blood flow. SA Med J. 78, 277-280 (26) Heyns AduP, Lötter MG, Kotze H, Pieters H, Herbst CP, Nel CJC, Minnaar PC. (1982) Kinetics and fate of Indium 111-oxine labeled platelets in patients with aortic aneurysms. Arch Surgery. 177, 1170-1174. (27) van Wyk AJ, van Aswegen A, Knoesen O, Fourie PJ, Koekemoer J, Herbst CP, Otto AC, Lötter MG. (1991) Synthesis and 99mTc labeling of MMI (MIBI) and its ethyl analogue EMI. Appl Radiat Isot, 42, 687-689 (28) Pretorius PH, van Aswegen A, Herbst CP, Lötter MG. (1991) The effects of different correction techniques on absolute volume determination with SPECT using a threshold edge detection method. Med Phys, 18, 390-393. (29) Herbst CP, Diedericks J, Uys NJ, Brummer J, Lötter MG. (1991) Use of a personal computer for fast acquisition of cardiovascular data over an extended period. Comp Med Biol, 21, 407-415. (30) Kotze HF, Heyns AduP, Nel CJC, Roodt JP, Herbst CP, Badenhorst PN, Lötter MG. The influence of platelet-graft interaction on platelet survival in patients with aortobifemoral Dacron grafts. (1992) SA Med J, 81, 27-31 (31) Pretorius PH, van Rensburg AJ, van Aswegen A, Lötter MG, Serfontein DE, Herbst CP (1993): The channel ratio method of scatter correction for radionuclide image quantitation. J Nucl Med 34, 330-335. (32) Pretorius PH, van Aswegen A, Lötter MG, Herbst CP, Nel MG, Otto AC (1993): Verification of a varying threshold edge detection SPECT technique of spleen volume: A comparison with CT volumes. J Nucl Med, 34, 963-967. (33) Jansen SE, van Aswegen A, Lötter MG, Herbst CP, Otto AC. (1994) Staff radiation doses during eight years in a nuclear medicine radiopharmacy. Nucl Med Comm 15,114-118. (34) Serfontein DE, Herbst CP, Van Aswegen A, Lötter MG (1994): Stralingsbeheer in Suid-Afrika: Die jongste aanbevelings. Geneeskunde 36, (Sept/Okt), 19-28.
    • 10 (35) Uys NJ, Herbst CP, Van Aswegen A, Lötter MG, Sweetlove MA, De Villiers JFK (1995): A non-invasive method to control the tube current calibration of diagnostic radiology equipment. Rad Protection Dosimetry 57, 227-229. (36) Naude HN, van Aswegen A, Herbst CP, Lötter MG, Pretorius PH. (1996) A Monte Carlo evaluation of the channel ratio method. Phys Med Biol 41, 1059-1066. (37) Uys NJ, Herbst CP, Lötter MG, De Villiers JFK, van Zyl M (1997) Evaluation of a numerical observer to determine the influence of JPEG data compression on the diagnostic quality of computed tomography images. Proc. SPIE, Medical Imaging 1997 (38) du Raan H, du Toit PD, van Aswegen A, Lötter MG, Herbst CP, van der Walt TN, Otto AC (2000) Implementation of a Tc-99m and Ce-139 scanning line source for attenuation correction in SPECT using a dual opposing detector scintillation camera. Med Phys 27: 1523-1534. 13.2.Books 13.3.Technical Reports 13.4.Publication without outside referees 13.4.1.Abstracts (1) Van Aswegen A, Herbst CP, Otto AC, Lötter MG, Kleynhans PHT, Minnaar PC (1982). Utilization of a radionuclide washout technique for evaluation of right ventricular ejection fraction (abstr). SA J Sc, 78, p 212. (2) Herbst CP, Lötter MG, van Aswegen A, Minnaar PC (1982). ‘n Vergelyking van eerste en tweede afgeleide randherkennings- tegnieke (ops.) SA J Sc, 78, p 213. (3) Lötter MG, Herbst CP, Wessels P, Oelofse R, Heyns AduP, Minnaar PC (1982). Estimation of platelet survival (abstr). SA J Sc, 78, p 214. (4) Herbst CP, Burow RD, van Aswegen A, Kleynhans PHT, Lötter MG, Minnaar PC, (1984) Die bepaling van linkerventrikulere volume deur middel van radionuklied metodes (ops). SA J Sc, 80, p 435 (5) Herbst C, Dormer K, Sung BH, Brackett D, Barkan B, Burow RD, Wilson MF (1986) Pressure-volume relations using radionuclide imaging (abstr). Proc. Federation of American Societies for Experimental Biology, p778. (6) Dormer K, Bedford T, Herbst C, Wilson M (1986) Multiple gated acquisition (MUGA) nuclear blood pool imaging in the dog compared to pulse transit time flow measurements (abstr). Proc. Federation of American Societies for Experimental Biology, p782. (7) Wilson MF, Herbst CP, Burow RD, Brackett DJ, Sung BH, Corn CR, Allen EW (1986) High diagnostic accuracy of 180o exercise thallium tomography in eighty consecutive patients evaluated for chest pain syndrome (abst). J Nucl Med 27, p999. (8) Herbst CP, Otto AC, van Aswegen A, Lötter MG, Minnaar PC (1987) The radionuclide assessment of the effects of nitroglycerin and nifedipine (abst). SA J Science 83, p179. (9) Pretorius PH, van Aswegwn A, Otto AC, Herbst CP, Lötter MG, Minnaar
    • 11 PC (1987) Determination of normal Tc-99 thyroid uptake with different background corrections (abst) SA J Science 83,p180 (10) Herbst C, Otto A, van Aswegen A, Sweetlove MA (1987) Acute haemodynamic effects of nifedipine and nisoldipine (abst). SA J Science 83, p385. (11) Herbst CP, Dormer KJ, Brackett DJ, Wilson MF, Barkan B, Burow RD (1987) Digitizing and signal averaging of left ventricular pressure signals using a dedicated radionuclide imaging system (abst). SA J Science 83, p575. (12) Herbst CP, Theron HduT, Kleynhans PHT, van Aswegen A, Minnaar PC. (1989) Assessment of regional myocardial perfusion before and after coronary angioplasty (abst). SAMJ 75, p135. (13) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. (1989) The effect of different image enhancement parameters on the resolution of SPECT studies (abst). SAMJ 75, 138. (14) Viviers AC, van Zyl M, Dunn MM, Herbst CP, Otto AC, Botha BP. (1989) ‘n Vergelyking van 3 verskillende tegnieke vir die berekening van glomerulêre filtrasiespoed (ops). SAMJ 75, 141. (15) Herbst CP, van Aswegen A, Lötter MG, Minnaar PC. (1988) A comparison of equivalent cardiac software on two nuclear medicine computer systems using transferred data (abst). SA J Science 84, 604. (16) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. (1988) Die effek van verskillende korreksietegnieke op oplosvermoe tydens GEFET (ops.) SA T Wetenskap 84, 604. (17) Geldenhuys EM, Lötter MG, Sweetlove MA, Pretorius PH, van Zyl M, de Lange JAH, Bezuidenhout MM, Herbst CP, Minnaar PC. (1988) Acceptance tests on three GE-410-Starcam scintillation cameras (abst.) SA J Science 84, 610. (18) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. (1989) Quantification of volumes using single photon emission computed tomography. (abst.) SA J Science 85, 475 (19) van Aswegen A, Herbst CP, Pretorius PH, Mills SJ, Minnaar PC. (1989) Radionuclide imaging with high-purity I-123: Collimator characteristics. (abst.) SA J Science 85, 476. (20) Herbst CP, Theron H, Kleynhans PHT, Otto A, Lötter MG. A Comparison of the clinical Relevance of 201-Thallium and 99m-Tc- Methoxy isobutyl isonitrile for the evaluation of myocardial blood flow. (abst) Cardvasc J of SA. 1, Suppl p32 (21) Herbst CP, Theron H, Kleynhans PHT, Otto A, Lötter MG. A Comparison of the clinical Relevance of 201-Thallium and 99m-Tc- Methoxy isobutyl isonitrile for the evaluation of myocardial blood flow. (abst) Cardvasc J of SA. 1, 172 (22) Heyns AduP, Lötter MG, Kotze H, Pieters H, Herbst CP, Nel CJC, Minnaar PC. (1982) Kinetics and fate of Indium 111-oxine labeled platelets in patients with aortic aneurysms. (abst) Thromb and Haemost 46 (1) p289. (23) Heyns AduP, Badenhorst PN, Lötter MG, De Kock FC, Herbst C, Pieters H, Minnaar PC. (1981) Kinetics and sites of destruction of Indium-111- oxine labelled platelets in immune thrombocytopenic purpura. (abst) Thromb Haemost 46 (1) p417. (24) Naudé H, Herbst CP, Van Aswegen A, Lötter MG, Otto AC (1993): The evaluation of the channel ratio method to quantify radionuclide activity by using Monte Carlo techniques. Eur J Nucl Med, 20, 988.
    • 12 (25) Naude H, Herbst CP, Lotter MG, van Aswegen A. (1994) The influence of size and position of a reference source for absolute quantization of radionuclide images. (Abst) Phys Med Biol (39b) p713 (26) Serfontein, DE, Herbst CP, Lotter MG, van Aswegen A, Rabe WLR, van Staden J. (1994) Evaluation of a PC based Nuclear Medicine image acquisition station. Phys Med Biol (39b) p 721 (27) H Naude, MG Lotter, A van Aswegen, PH Pretorius, CP Herbst, AC Otto. (1994) Accuracy of organ radioactivity quantification comparing the geometrical mean and channel ratio techniques. J Nucl Med, 35, p179 (28) PH Pretorius, A van Aswegen, MG Lotter, CP Herbst (1994) An evaluation of maximum likelihood reconstruction for spect colume calculation employing threshold edge detection. J Nucl Med, 35, p193. (29) VAN STADEN, J.A., HERBST, C.P., VAN ASWEGEN, A., MARAIS, J., LöTTER, M.G., OTTO, A.C. ( 2001) Left ventricular ejection fraction calculated from gated technetium-99-sestamibi SPECT. Cardiovasc J South Africa; 12:196-200. 13.4.2.Popular articles (1) Kleynhans PHT, Lötter MG, van Aswegen A, Minnaar PC, Itturalde M, Herbst CP, Marx D (1980). Taking radionuclides to heart. Nuclear Active, 23, p 29. (2) Herbst CP, Lötter MG, Minnaar PC (1986) Wetgewing en die aanbevelings van die internasionale komitee vir radiologiese beskerming - Beheer oor straling in Suid-Afrika. Geneeskunde, Augustus 1986, p192. (3) van Aswegen A, van Wyk AJ, Herbst CP, Otto AC Knoesen O, Lötter MG, Minnaar PC, Kleynhans PHT, Fourie PJ (1989) Pictures in the heart. Nuclear Active, 41, p42. 14. CONGRESS CONTRIBUTIONS 14.1.Local (1) 1981 - Die in vivo-gedragswyse van 111-Indiumoksiengemerkte bloedplaatjies in pasiente met aorta-aneurisme. Badenhorst PN, Heyns A du P, Lötter MG, de Kock FC, Pieters H, Herbst CP, Nel CJC. (2) 1982 - Die ondersoek van linkerventrikulere funksie met behulp van Fourier- analise. Herbst CP, van Aswegen A, Lötter MG, Minnaar PC, Kleynhans PHT, Otto AC. (3) 1983 - Die bepaling van linkerventrikulere volume deur middel van radionuklied metodes. Herbst CP, Burow RD, van Aswegen A, Kleynhans PHT, Lötter MG, Minnaar PC. (4) 1983 - Variation in left ventricular ejection fraction determination at rest and during exercise. van Aswegen A. Herbst CP, Lötter MG, Otto AC, Kleynhans PHT. (5) 1983 - The utilization of a radionuclide washout technique for evaluation of right
    • 13 ventricular ejection fraction. Van Aswegen A, Herbst CP, Otto AC, Lötter MG, Kleynhans PHT, Minnaar PC. (6) 1985 - ‘n Ondersoek na die invloei van kardioplegie in die pulmonale vaskulere bed tydens opehartchirurgie en die patofisiologiese veranderings wat plaasvind as gevolg hiervan. Neetling WLM, Meyer JM, Grobler NJ, Herbst CP, van Rensburg AJ, De Witt LJD. (7) 1985 - In Vivo-tiroied-funksiebepaling met behulp van Tc- 99m en die gammakamera-rekenaarsisteem. Pretorius PH, van Aswegen A, Otto AC, Herbst CP, Lötter MG, Minnaar PC. (8) 1985 - ‘n Vergelyking van verskeie cholesintigrafiese middels vir beelding van die lewer-galwegsisteem. van Aswegen A, van Wyk AJ, Roodt JP, Lötter MG, Otto AC, Herbst CP, Minnaar PC. (9) 1987 - Tc-99m-Etiel-Isonitriel: ‘n Nuwe radioaktiewe spoorder vir miokardiale perfusiebeelding. van Aswegen A, van Wyk AJ, Otto AC, Herbst CP, Viviers A, Lötter MG, Minnaar PC, Kleynhans PHT. (10) 1988 - Die effek van intraveneuse amrinoon (inocorR) op linker ventrikulêre funksie in pasiënte met verwydende kardiomiopatie. Colyn HJR, Otto AC, Herbst CP. (11) 1988 - ‘n Vergelyking van 3 verskillende tegnieke vir die berekening van glomerulêre filtrasiespoed. van Zyl M, Viviers AC, Dunn M, Herbst CP, Otto AC, Botha BP. (12) 1988 - Die effek van verskillende korreksietegnieke op oplosvermoë tydens gerekenariseerde enkelfotonemissie-tomografie. Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. (13) 1988 - Acceptance testing on three GE-410-Starcam scintillation cameras. Geldenhuys EM, Lötter MG, Sweetlove MA, Pretorius PH, van Zyl M, de Lange JAH, Bezuidenhout MM, Herbst CP, Minnaar PC. (14) 1989 - Die effek van verskillende korreksietegnieke op die bepaling van absolute volume met gerekenaridseerde enkelfotonemissietomografie. Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. (15) 1989 - Radioisotoopbeelding met hoë suiwerheid I-123: Kollimator eienskappe. van Aswegen A, Herbst CP, Pretorius PH, Minnaar PC. (16) 1989 - ‘n Vergelyking van die gebruik van 201Tl en 99mTc-MIBI vir die bestudering van miokardiale perfusie. Herbst CP, Theron H, van Aswegen A, Kleynhans PHT, Minnaar PC, Otto AC. (17) 1989 - Image enhancement utilizing a histogram modfication technique. de Lange JAH, Herbst CP, Lötter MG, Minnaar PC. (18) 1990 - Versameling van kardiologiese data met behulp van ‘n persoonlike rekenaar: Vereistes en beperkinge. Herbst CP, Uys N, Diedericks J, Brummer J, Lötter MG (19) 1990 - ‘n Vergelyking van die bepaling van absolute volume m.b.v. twee beeldingstelsels. Pretorius PH, van Aswegen A, Herbst CP, Lötter MG. (20) 1990 - Evaluering van die effek van Cilazapril en Enalapril op die nierfunksie m.b.v. radionukliedmetodes. de Lange JAH, Naude H, Herbst CP, van Aswegen A, Lötter MG, Otto AC, Groenewald G, Luus H. (21) 1990 - Versameling van Kardiologiese data met behulp van ‘n persoonlike rekenaar: Akkuraatheid en Stabiliteit. Uys NJ, Herbst CP, Diedericks J, Brummer J, Lötter MG. (22) 1990 - Die gebruik van gerekenaariserde grafieke in die Fakulteit Geneeskunde. van Wyk WP, Rabe WL, Herbst CP, Lötter MG. (23) 1991 - ‘n Vergelyking tussen die maagdeurgang van verskillende substanse. van Zyl WJ, Ungerer MJ, Diedericks J, Herbst C, Kruger P, de Wet JI, Calitz M (24) 1991 - Hemodinamiese interaksie tussen Propofol en Esmolol. Diedericks BJS,
    • 14 Herbst CP, Hundt HKL, Uys NJ, Brummer J (25) 1991 - Ouderdomverskille in gastriese lediging van vloeistowwe en vaste stowwe in volwassenes. Homan LT, Ungerer MJ, Diedericks J, Herbst C, Kruger P, de Wet K, Calitz M (26) 1991 - Die gebruik van ‘n personlike rekenaar vir die vrewerking en vertoon van Kerngeneeskundige beelde. van Wyk WP, Serfontein DE, Herbst CP, Smith CF, Pretorius PH, van Aswegen A (27) 1991 - A new scatter correction technique for radionuclide image quantitation. Pretorius PH, van Rensburg AJ, Lötter MG, van Aswegen A, Herbst CP. (28) 1992 - Die effek van Pimobendan op iskemiese miokardium. BJS Diedericks, CP Herbst, N Uys en J Brummer. (29) 1992 - ‘n Eenvoudige meetmetode vir die ruimtelike verspreiding van die energiespektrum van die verstrooide gammastrale vanaf ‘n 99mTc puntbron in water. DE Serfontein, CP Herbst, A van Aswegen, MG Lötter en PH Pretorius. (30) 1992 - Staff radiation doses during seven years in a nuclear medicine radiopharmacy. SE Jansen, A van Aswegen, CP Herbst, MG Lötter en AC Otto. (31) 1992 - ‘n Vergelyking van die beeldingseienskappe van iteratiewe en terugprojeksie tomografiese rekonstruksie tegnieke d.m.v. OWK analise. H Naude, CP Herbst, A van Aswegen, MG Lötter. (32) 1992 - The effect of body posture on the rate of gastric emptying in adults. F Thom, J Diedericks, MJ Ungerer, P Kruger, CP Herbst en DJR du Toit. (33) 1992 - Verification of a varying threshold egde detection technique on spleen volume: A comparison to CT volumes. PH Pretorius, A van Aswegen, MG Lötter, CP Herbst, MG Nel en AC Otto. (34) 1993 - Die gebruik van ‘n persoonlike rekenaar vir statiese beeldversameling vanaf ‘n gammakamera. DE Serfontein, CP Herbst, A van Aswegen, MG Lötter. (35) 1993 - Comparison between Technetium-99m-methoxyisobutyl-isonitrile tomography and quantitative coronary angiography following successful percutaneous coronary angioplasty. HduT Theron, CP Herbst, PHT Kleynhans, A van Aswegen, AC Otto, R Schall. (36) 1994 - The influence of size and position of a reference source for absolute quantization of radionuclide images. HN Naude, CP Herbst, A van Aswegen, MG Lötter. (37) 1994 - Radiographic detection and viewing conditions. E Jooste, MA Sweetlove, CP Herbst. (38) 1994 - An evaluation of maximum likelihood reconstruction for SPECT volume calculation employing threshold edge detection. PH Pretorius, A van Aswegen, MG Lötter, CP Herbst (38) 1994 - Evaluation of a PC based nuclear medicine image acquisition station. DE Serfontein, CP Herbst, JA van Staden, WlR Rabe, A van Aswegen, MG Lötter. (39) 1995 - Implementation of a mammography quality assurance programme including stereotaxis. MA Sweetlove, MG Lötter, CP Herbst, C Brink, JFK de Villiers, C Markgraaf, I Nel. (40) 1995 - Die gebruik van ’n Aluminium stapwig vir gehalteversekering van diagnostiese radiologie apparaat. PD du Toit, CP Herbst, MA Sweetlovw, A van Aswegen, MG Lötter, JFK de Villiers. (41) 1996 - ’n Nuwe indeks vir die bepaling van miokardiale verslapping AP Hugo, J Diedericks, CP Herbst, JM van Zyl (42) 1996 - Changing attitudes towards body size in urban Blacks. M Slabber, AM Baderhorst, G Joubert, WF Mollentze, CP Herbst.
    • 15 (43) 14.2.National (1) 1979 (SAAPMB Congress) - Lötter MG, Minnaar PC, van Aswegen A, Herbst CP, Itturalde M, Kleynhans PHT. Advances in Instrumentation for Nuclear Cardiology. (2) 1979 (SAAPMB Congress) - Van Aswegen A, Kleynhans PHT, Lötter MG, Herbst CP, Minnaar PC, Itturalde M. Die bepaling van linkerventrikulere kardiale uitwerpingsfraksie deur EKG radionukliede tegnieke. (3) 1980 (SAAPMB Congress) - Lötter MG, van Reenen OR, Killian F, Badenhorst PN, Minnaar PC, Herbst CP, Heyns A du P, Pieters H, van den Berg H. Quantitation of 111-In Blood Platelet organ distribution. (4) 1980 (SAAPMB Congress) - Herbst CP, Badenhorst PN, Killian F, Lötter MG, Minnaar PC, Heyns A du P, Pieters H, van den Berg A, van Reenen OR. 111-In Blood platelet survival. (5) 1980 (SAAPMB Congress) - Lötter MG, Kleynhans PHT, van Aswegen A, Herbst CP, Minnaar PC, Marx D, Iturralde M. Kr-81m myocardial perfusion. (6) 1980 - (SAAPMB Congress) - Lötter MG, Herbst CP, van Aswegen A, Hattingh H, Minnaar PC. Computer-assisted graphics. (7) 1981 - (SAAPMB Congress) - van Aswegen A, Herbst CP, Lötter MG, Kleynhans PHT, Minnaar PC. Observer variance in left ventricular ejection fraction determination. (8) 1982 (SAAPMB Congress) - van Aswegen A, Herbst CP, Otto AC, Lötter MG, Kleynhans PHT, Minnaar PC. The utilizing of right ventricular ejection fraction. (9) 1982 (SAAPMB Congress) Herbst CP, Lötter MG, van Aswegen A, Minnaar PC. ‘n Vergelyking van eerste en tweede afgeleide randherkenningstegnieke. (10) 1982 (SAAPMB Congress) Lötter MG, Herbst CP, Wessels P, Oelofse R, Heyns A du P, Minnaar PC. Estimation of platelet survival. (11) 1983 (SAAPMB Congress) - Herbst CP, Burow RD, van Aswegen A, Kleynhans PHT, Lötter MG, Minnaar PC. Die bepaling van linkerventrikulere volume deur middel van radionuklied metodes. (12) 1983 (SAAPMB Congress) - Otto AC, van Aswegen A, Kleynhans PHT, Marx JD, Herbst CP, Lötter MG, Minnaar PC. The effects of nitroglycerine on LV function studied with radionuclide gated blood pool imaging. (13) 1984 (SAAPMB Congress) - van Aswegen A, van Wyk AJ, Roodt JP, Pieters H, Herbst CP, Otto AC, Lötter MG, Haasbroek FJ, Minnaar PC, Fourie PJ. Die evaluering van Broom-77 hippuran as tubulere nierfunksiemiddel. (14) 1984 (SA Soc of Nucl Med) - Herbst CP. Left ventricular volume, using the attenuation corrected volume curve. (15) 1985 (SAAPMB Congress) - Herbst CP, Otto AC, van Aswegen A, Lötter MG, Minnaar PC. The radionuclide assessment of the effects of nitroglycerine and nifedipine. (16) 1985 (SAAPMB Congress) - Pretorius PH, van Aswegen A, Otto AC, Herbst CP, Lötter MG, Minnaar PC. The determination of normal Tc-99m thyroid uptake with different background corrections. (17) 1986 (SAAPMB Congress) - Herbst C, Otto A, van Aswegen A, Sweetlove A. The acute hemodynamic effects of nifedipine and nisoldipine. (18) 1987 (SAAPMB Congress) - Herbst CP. New developments in emission tomography.
    • 16 (19) 1987 (SAAPMB Congress) - Herbst CP, Dormer KJ, Brackett DJ, Wilson MF, Barkan B, Burow RD. Digitizing and signal averaging of left ventricular pressure signals using a dedicated radionuclide imaging system. (20) 1988 (SAAPMB Congress) Herbst CP, van Aswegen A, Lötter MG, Minnaar PC. A comparison of equivalent cardiac software on two nuclear medicine computer systems using transferred data. (21) 1988 (SAAPMB Congress) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. Die effek van verskillende korreksietegnieke op oplosvermoe tydens GEFET. (22) 1988 (SAAPMB Congress) Geldenhuys EM, Lötter MG, Sweetlove MA, Pretorius PH, van Zyl M, de Lange JAH, Bezuidenhout MM, Herbst CP, Minnaar PC. Acceptance tests on three GE-410-Starcam scintillation cameras. (23) 1988 (SA Soc of Nucl Med) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. Quality assurance for single photon emission computed tomography. (24) 1988 (SA Soc of Nucl Med) Herbst CP, Theron HduT, Kleynhans PHT, van Aswegen A, Minnaar PC. Assessment of regional myocardial perfusion before and after coronary angioplasty. (25) 1988 (SA Soc of Nucl Med) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. The effect of different image enhancement parameters on the resolution of SPECT studies. (26) 1988 (SA Soc of Nucl Med) Viviers AC, van Zyl M, Dunn MM, Herbst CP, Otto AC, Botha BP. ‘n Vergelyking van 3 verskillende tegnieke vir die berekening van glomerulêre filtrasiespoed. (27) 1988 (Southern African Cardiac Society Congress) Theron HduT, Herbst CP, Kleynhans PHT, van Aswegen A, Minnaar PC. Assessment of regional myocardial perfusion before and after coronary angioplasty. (28) 1989 (SAAPMB Congress) Pretorius PH, van Aswegen A, Herbst CP, Minnaar PC. Quantification of volumes using single photon emission computed tomography. (29) 1889 (SAAPMB Congress) van Aswegen A, Herbst CP, Pretorius PH, Mills SJ, Minnaar PC. Radionuclide imaging with high-purity I-123: Collimator characteristics. (30) 1990 (SAAPMB Congress) Herbst CP, Gagiano J, Lötter MG, van Aswegen A. Gehaltebeheer van diagnostiese x-straal apparaat: ondervinding oor ‘n een jaar periode. (31) 1990 (SAAPMB Congress) van Aswegen A, Herbst CP, Minnaar PC. Kollimatoreienskappe vir beelding van I-123. (32) 1990 (SAAPMB Congress) van Rensburg A, Lötter MG, Herbst CP, Roodt JP, Badenhorst PN, Heyns A Du P, Minnar PC. Comparison of whole-body (WB) and depth-independant build-up factor (DIBF) methods for to quantitate In-111 labelled platelet uptake in the liver and spleen. (33) 1990 (Radiology Congress) Herbst CP, Gagiano J, Lötter MG, van Aswegen A. Gehaltebeheer van diagnostiese x-straal apparaat: ondervinding oor ‘n een jaar periode. (34) 1990 (Southern African Cardiac Society Congress) Herbst CP, Theron H, van Aswegen A, Kleynhans PHT, Otto AC, Lötter MG. A Comparison of the clinical relevance of 201Thallium and 99mTc Methoxy Isonitrile Isobutyl for the evaluation of myocardial blood flow. (35) 1990 (SA Society of Nuclear Medicine Congress) Herbst CP, Theron H, van Aswegen A, Kleynhans PHT, Otto AC, Lötter MG. A Comparison of the clinical relevance of 201Thallium and 99mTc Methoxy Isonitrile Isobutyl for the evaluation of myocardial blood flow. (36) 1990 (SA Society of Nuclear Medicine Congress) Otto Ac, van Aswegen A,
    • 17 Herbst CP, Sweetlove A, Viviers A, Flint GR. The effects of nisoldipine on lrft ventricular filling rate in patients with ischemic heart disease measured with radionuclide gated blood pool scintigraphy. (37) 1990 (SA Society of Nuclear Medicine Congress) Pretorius PH, van Aswegen A, Herbst CP, Lötter MG. A comparison of the effects of different correction techniques on absolute volume determination with two SPECT imaging systems. (38) 1990 (SA Society of Nuclear Medicine Congress) de Lange JAH, Naude H, Oelofse B, Herbst CP, van Aswegen A, Lötter MG, Otto AC, Groenewoud G. The radionuclide evaluation of the effects of Cilazapril and Enalapril on renal function. (39) 1980 (South African Haematology Association) Pieters H, Herbst CP, Badenhorst PN, Lötter MG, de Kock F, Heyns AduP, Kotze HF, van Reenen OR, Minnaar PC. Experience with the multi hit gamma function model for analysis of survival of Indium-111-labelled platelets. (40) 1991 (SAAPMB Congress) Herbst CP, Diedericks J, Uys NJ, Brummer J, Lötter MG. Die gebruik van ‘n persoonlike rekenaar vir vinnige dataversameling van kardiologiese data oor ‘n verlengde versamelperiode. (41) 1991 (SAAPMB Congress) Uys NJ, Herbst CP, Diedericks J, Brummer J, Lötter MG. Versameling van kardiologiese data met behulp van ‘n persoonlike rekenaar: Akkuraatheid en stabiliteit. (42) 1991 (SAAPMB Congress) van Rensburg AJ, Lötter MG, van Aswegen A, Pretorius PH, Herbst CP. A new scatter correction technique for radionuclide image quantitation. (43) 1991 (SAAPMB Congress) van Wyk WP, Herbst CP, Smith CF, Pretorius PH, van Aswegen A. Die gebruik van ‘n persoonlike rekenaar vir die verwerking en vertoon van kerngeneeskundige beelde. (44) 1991 (SAAPMB Congress) Pretorius PH, van Aswegen A, Herbst CP, Lötter MG. A comparison of absolute volume determination on two SPECT imaging systems using a threshold edge detection method. (45) 1992 (SAAPMB Congress) Herbst CP, Naude H, van Aswegen A, Lötter MG. ‘n Vergelyking van die beeldingseienskappe van iteratiewe en terugprojeksie tomografiese rekonstruksie tegnieke d.m.v. OWK analise. (46) 1992 (SAAPMB Congress) Pretorius PH, van Aswegen A, Lötter MG, Herbst CP, Nel MG, Otto AC. Verification of a varying threshold edge detection SPECT technique on spleen volume: A comparison to CT volumes. (47) 1992 (SAAPMB Congress) Serfontein DE, Herbst CP, van Aswegen A, Lötter MG, Pretorius PH. A simple technique for the measurement of the spatial distribution of the energy spectrum of scattered photons for a 99mTc point source in water. (48) 1992 (SA Society of Nuclear Medicine Congress) PH Pretorius, MG Lötter, A van Aswegen, A van Rensburg, CP Herbst. A new scatter correction technique for radionuclide image quantification. (49) 1992 (SA Society of Nuclear Medicine Congress) H Naude, CP Herbst, A van Aswegen MG Lötter. A comparison of the imaging characterisitics of iterative and back projection tomographic reconstruction techniques. (50) 1992 (SA Society of Nuclear Medicine Congress) PH Pretorius A van Aswegen MG Lötter CP Herbst, MG Nel, AC Otto. Verification of a varying threshold edge detection SPECT technique on spleen volume: A comparison to CT Volumes. (51) 1992 (SA Society of Nuclear Medicine Congress) R du Toit, F Thom, J Diedericks, MJ Ungerer, P Kruger en CP Herbst. The effect of body posture on the rate of gastric emptying in adults. (52) 1992 (SA Society of Nuclear Medicine Congress) SE Jansen, A van Aswegen, CP
    • 18 Herbst, MG Lötter en AC Otto. Staff radiation doses in a nuclear medicine radiopharmacy - A review of measurements over a seven year period. (53) 1992 (Research Animal Congress) Herbst CP, Diedericks J, Uys NJ, Brummer J, Lötter MG. Use of a personal computer for fast acquisition of cardiovascular data over an extended period. (54) 1993 (SAAPMB Congress) Herbst CP, Fornberg B, Herbst BM, Lötter MG. A Multimodality display, analysis and distribution system for medical images. (55) 1993 (SAAPMB Congress) Naude H, Herbst CP, van Aswegen A. A Monte Carlo program to simulate nuclear medicine images. (56) 1993 (SAAPMB Congress) Jansen SE, van Aswegen A, Herbst CP, Lötter MG, Otto AC. Staff radiation doses during seven years in a nuclear medicine radiopharmacy. (57) 1993 (SAAPMB Congress) Uys NJ, Herbst CP, Barnard C, Lötter MG, de Villiers JFK. Die ontwikkeling en toepassing van ‘n nie-ingrypende tegniek waarmee mA kalibrasie van ‘n diagnostiese x-straal apparaat gekontroleer kan word. (58) 1994 (SAAPMB Congress) DE Serfontein, CP Herbst, A van Aswegen, MG Lötter Evaluation of a PC based nuclear medicine image acquisition station. (59) 1994 (SAAPMB Congress) H Naude, CP Herbst, A van Aswegen MG Lötter. The influence of size and position of a reference source for absolute quantization of radionuclide images. (60) 1994 (SAAPMB Congress) JA van Staden, CP Herbst, MG Lötter, A van Aswegen. Kwantifisering van I-131 en I123 m.b.v. ‘n veelkanaal analiseerder. (61) 1994 (SAAPMB Congress) NJ Uys, CP Herbst. A comparison between two different x-ray beam quality measurement techniques. (62) 1994 (SAAPMB Congress) PH Pretorius, A van Aswegen, CP Herbst, MG Lötter.An evaluation of maximum likelihood reconstruction for Spect volume calculation employing threshold edge detection. (63) 1994 (SA Society of Nuclear Medicine Congress) DE Serfontein, CP Herbst, A van Aswegen, J van Staden, Wle R Rabe, MG Lotter. Evaluation of a PC based Nuclear Medicine image acquisition station. (64) 1994 (SA Society of Nuclear Medicine Congress) H Naude, MG Lotter, A van Aswegen, PH Pretorius, CP Herbst, AC Otto. Accuracy of organ radioactive quatification comparing the geometrical mean and channel ration techniques. (65) 1994 (SA Society of Nuclear Medicine Congress) PH Pretorius, A van Aswegen, MG Lotter, CP Herbst AC Otto. An evaluation of maximum likelihood reconstruction for SPECT volume calculation employing threshold edge detection. (66) 1995 ( SAAPMB Congress) H Naudé, MG Lötter, A van Aswegen, CP Herbst, PH Pretorius, AC Otto. The comparison of organ radioactivity quantification applying the CR method. (67) 1995 (SAAPMB Congress) CP Herbst, MA Sweetlove, P du Toit, A van Aswegen, MG Lötter, JFK de Villiers. The use of an aluminum step wedge for quality assurance of diagnostic radiology equipment. (68) 1995 (SAAPMB Congress) NJ Uys, CP Herbst, JFK de Villiers, JM van
    • 19 Zyl, MG Lötter. The evaluation of numerical observers to determine the influence of JPEG data compression on the diagnostic quality of computed tomography images. (69) 1995 (SAAPMB Congress) MA Sweetlove, MG Lötter, CP Herbst, C Brink, JFK de Villiers, C Markgraaf, I Nel. Implementation of a mammography quality assurance programme including stereotaxis (70) 1997 (SAAPMB Congress) H Naudé, A van Aswegen, MG Lötter, PD du Toit, PH Pretorius, CP Herbst. Implementation of a scanning line source (Tc-99m & Ce-139) for attenuation correction in SPECT using a dual opposing head scintillation camera. (71) 1997 (SAAPMB Congress) J Marais, A van Aswegen, SE Jansen, AC Otto, MG Lötter, M Dunn.: A comparison of GFR values determined using three radionuclide techniques in healthy volunteers. (72) 1998 (SAAPMB Congress) A Sweetlove, E Smit, CP Herbst, MG Lötter, A van Aswegen.A practical approach for personnel dose monitoring. (73) 1998 (SAAPMB Congress) . J.A. van Staden, C.P. Herbst, A. van Aswegen, M.G. Lötter, G.Kemp, G.H.J. Engelbrecht, M.G. Nel, M. Dunn, A.C. Otto. Left ventricular ejection fraction and volumes calculated from gated SPECT myocardial perfusion imaging with 99mTc-MIBI (74) 1998 (SAAPMB Congress) PD du Toit, H Naudé, MG Lötter, A van Aswegen, CP Herbst. Conversion of attenuation coefficients measured with a 139Ce scanning transmission line source to emission with 99mTc in SPECT. (75) 1999 (SAAPMB Congress) H du Raan, A van Aswegen, CP Herbst, MG Lötter, PD du Toit, AC Otto. Attenuation correction of SPECT images using attenuation coefficient maps obtained from simultaneous acquisition of transmission and emission data. (76) 1999 (SAAPMB Congress) A Sweetlove, CP Herbst, MG Lötter, A van Aswegen, DJ Marx, JFK de Villiers. The use of eye lens dose to optimise the working practices in fluoroscopic procedures. (77) 2000 (SAAPMB Congress) PD du Toit, MA Sweetlove, A van Aswegen, CP Herbst, C de Vries. Determination of the effectiveness of radiation protection when a lead glass visor is used during radiological fluoroscopy. (78) 2002 MOLEME, P.A., HERBST, C.P., LÖTTER, M.G. The effect of lossy JPEG compression on chest x-ray images. 42nd SAAPMB congress and Mount Amanzi Winter school, Pretoria, 2002. (79) 2002 MARAIS, J., LÖTTER, M.G., VAN STADEN, J.A., HERBST, C.P. 3-d Feature detection of the left ventricle to be used in image registration. 42nd SAAPMB congress and Mount Amanzi Winter school, Pretoria, 2002. (80) 2002 ACHO, S., HERBST, C.P., MASELESELE, V., MOLEME, P.,
    • 20 LÖTTER, M.G., VAN RENSBURG, A., DE VRIES, C. Comparison of entance exposure for similar radiological examinations on different x-ray units. 42nd SAAPMB congress and Mount Amanzi Winter school, Pretoria, 2002. 14.3.International (1) 1982 ( Third World Congress of Nuclear Medicine and Biology). A Comparison of methods of data analysis to evaluate blood platelet survival. CP Herbst, MG Lötter, PN Badenhorst, A du P Heyns, PC Minnaar, H Pieters, H Kotze, P Wessels, R Roelofse. (2) 1982 (Third World Congress of Nuclear Medicine and Biology). Determination of right ventricular ejection fraction utilizing a radionuclide washout technique. A van Aswegen, CP Herbst, AC Otto, MG Lötter, PHT Kleynhans, PC Minnaar. (3) 1982 (World Congress on Medical Physics and Biomedical Engineering). Variation in LVEF determination at rest and during exercise. A van Aswegen, CP Herbst, MG Lötter, AC Otto, PHT Kleynhans, PC Minnaar. (4) 1982 ( 5th South African International Radiological Congress) Determination of right ventricular ejection fraction utilizing a radionuclide washout technique. A van Aswegen, CP Herbst, AC Otto, MG Lötter, PHT Kleynhans, PC Minnaar. (5) 1982 (5th South African International Radiological Congress). The effects of sublingual Nitroglycerene on left ventricular performance as measured with radionuclide gated bloodpool technique. AC Otto, A van Aswegen, CP Herbst, PHT Kleynhans, M Bennett, D Marx, MG Lötter, PC Minnaar. (6) 1986 (Federation of American Societies for Experimental Biology) Pressure- volume relations using radionuclide imaging. Herbst C, Dormer K, Sung BH, Brackett D, Barkan B, Burow RD, Wilson MF. (7) 1986 (Federation of American Societies for Experimental Biology) Multiple gated acquisition (MUGA) nuclear blood pool imaging in the dog compared to pulse transit time flow measurements. Dormer K, Bedford T, Herbst C, Wilson M (8) 1986 (Society of Nuclear Medicine) High diagnostic accuracy of 180o exercise thallium tomography in eighty consecutive patients evaluated for chest pain syndrome. Wilson MF, Herbst CP, Burow RD, Brackett DJ, Sung BH, Corn CR, Allen EW. (9) 1987 (1st Internasional Nisoldipine Symposium) A comparison of the acute hemodynamic effects of nifedipine and nisoldipine in patients with iscemic reduced left ventricular function. Herbst CP, Otto AC, van Aswegen A, Sweetlove A, Strugo V. (10) 1988 (World Congress on Medical Physics and Biomedical Engineering - San Antonio) The effect of different flood field correction methods on SPECT images. van Aswegen A, Pretorius PH, Herbst CP, Lötter MG, Minnaar PC. (11) 1990 (European Nuclear Medicine Congress) Otto AC, van Aswegen A, Herbst CP, Sweetlove A, Viviers A, Flint GR. The effects of nisoldipine on left ventricular filling rate in patients with ischemic heart disease measured with radionuclide gated blood pool scintigraphy.
    • 21 (12) 1991 (World Congress on Medical Physics and Biomedical Engineering, Kyoto, Japan) A comparison of the effect of different correction techniques on absolute volume determination with two SPECT imaging systems. PH Pretorius, A van Aswegen, CP Herbst, MG Lötter. (13) 1991 (World Congress on Medical Physics and Biomedical Engineering, Kyoto, Japan) Radionuclide planar and SPECT imaging with high purity I-123: which collimator? A v Aswegen, CP Herbst, MG Lötter, PH Pretorius. (14) 1991 (World Congress on Medical Physics and Biomedical Engineering, Kyoto, Japan) A new scatter correction technique for radionuclide image quantitation AJ van Rensburg, MG Lötter, A van Aswegen, PH Pretorius, CP Herbst. (15) 1992 (39th Annual Meeting Society of Nuclear Medicine, Los Angeles, CA) A new scatter correction technique for radionuclide image quantification. AJ van Rensburg, MG Lötter, A van Aswegen, PH Pretorius, CP Herbst. (16) 1992 (European Association of Nuclear Medicine Congress, Lisbon, Portugal) A new scatter correction technique for radionuclide image quantification. van Rensburg AJ, Lötter MG, van Aswegen A, Pretorius PH, Herbst CP. (17) 1993 (CEG Workshop: Data Analysis in Quality Control and Radiation Protection of the Patient in Diagnostic Radiology and Nuclear Medicine, Grado, Italy) Uys NJ, Herbst CP, van Aswegen A, Lötter MG, de Villiers JFK. A non-invasive method to verify the tube current calibration of diagnostic radiology equipment. (18) 1993 (European Association of Nuclear Medicine Congress, Lausanne, Switzerland) Naudé H, Herbst CP, van Aswegen A, Lötter MG, Otto AC. The evaluation of the accuracy of the channel ratio method to quantify radionuclide activity by using Monte Carlo techniques. (19) 1994 (World Congress on Medical Physics and Biomedical Engineering) The influence of size and position of a reference source for absolute quantization of radionuclide images. Naude H, Herbst CP, Lotter MG, van Aswegen A. (20) 1994 (World Congress on Medical Physics and Biomedical Engineering) Evaluation of a PC based Nuclear Medicine image acquisition station. Serfontein, DE, Herbst CP, Lotter MG, van Aswegen A, Rabe WLR, van Staden J. (21) 1994 (Society of Nuclear Medicine, 41st Annual Meeting) Accuracy of organ radioactivity quantification comparing the geometrical mean and channel ratio techniques. H Naude, MG Lotter, A van Aswegen, PH Pretorius, CP Herbst, AC Otto. (22) 1994 (Society of Nuclear Medicine, 41st Annual Meeting) An evaluation of maximum likelihood reconstruction for spect colume calculation employing threshold edge detection. PH Pretorius, A van Aswegen, MG Lotter, CP Herbst (23) 1996 Invitation lecture - Zambia: Quality control of film processors. MA Sweetlove, A van Aswegen, CP Herbst, MG Lötter. (24) 1996 Invitation lecture - Zambia: Quality control of radiological equipment. MA Sweetlove, A van Aswegen, CP Herbst, MG Lötter. (25) 1997 (World Congress on Medical Physics and Biomedical Engineering, Nice, France) Implementation of a scanning line source (Tc-99m & Ce-139) for attenuation correction in SPECT using a dual opposing head
    • 22 scintillation camera. H Naude, A van Aswegen, MG Lötter, PF du Toit, PH Pretorius, CP Herbst (26) 1999 (4th International Congress of Nuclear Cardiology, Athens, Greece.) Calculation of left ventricular ejection fraction (LVEF) from polar graphs of the ventricular edges obtained from gated SPECT studies. van Staden JA, Herbst CP, van Aswegen A, Marais J, Lötter MG, Otto AC.