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Ct basics 2

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muhammed Yasar
muhammed Yasar
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Neuroradiology Dr. Grant J. Linnell Fellow Montreal Neurological Hospital McGill University
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object]
Neuroradiologist ,[object Object]
Neuroradiology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Neuroradiology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object]
CT Basics
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT History ,[object Object]
CT History SIR GODFREY N. HOUNSFIELD ,[object Object]
CT History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Protocolling ,[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Terminology ,[object Object],[object Object],[object Object],[object Object]
CT Terminology
CT Terminology ,[object Object],[object Object],[object Object],[object Object]
CT Terminology
CT Artifacts
CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object]
CT Terminology ,[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Contrast
Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object],Amin MM, et al. Ionic and nonionic contrast media: Current status and controversies. Appl Radiol 1993; 22: 41-54.
Contrast ,[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object]
Contrast ,[object Object],[object Object],[object Object],[object Object],Prevention of radiographic-contrast-agent-induced reductions in renal function by acetylcysteine. Tepel M, et al. N Engl J Med 2000 Jul 20;343(3):180-4
Contrast ,[object Object],[object Object],[object Object],Mehran, R. et al. Radiocontrast induced renal failure:Allocations and outcomes. Reviews in Cardiovascular Medicine Vol. 2 Supp. 1 2001
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],-The equivalent of 200 CXR
Radiation Safety ,[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],Per Hall, et al. Effect of low doses of ionising radiation in infancy on cognitive function in adulthood: Swedish population based cohort study BMJ, Jan 2004; 328: 19 - 0.
Radiation Safety ,[object Object],[object Object],William J Schull, Effects of Atomic Radiation: A Half-Century of Studies from Hiroshima and Nagasaki , 1995.
Radiation Safety ,[object Object],[object Object],William J Schull, Effects of Atomic Radiation: A Half-Century of Studies from Hiroshima and Nagasaki , 1995.
Radiation Safety ,[object Object],[object Object],[object Object]
Radiation Safety Comparison of Image Quality Between Conventional and Low-Dose Nonenhanced Head CT Mark E. Mullins a , et al. AJNR April 2004. Reduction of mAs from 170 to 90
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Health Physics Society on the web--http://hps.org
Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Radiation Safety ,[object Object],[object Object]
Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Normal CT
1 day 1 year 2 years
Normal CT Older person
Normal Enhanced CT
Case 1 ,[object Object]
Case 1
Case 1
Case 1 ,[object Object]
CTA
Normal Angiography
Diagnostic Angiography
Case 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Case 2 ,[object Object]
Case 2
Case 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Subdural Hematoma
Case 3 ,[object Object]
Case 3
Case 3 ,[object Object]
MCA Stroke “Dense MCA”
Case 4 ,[object Object],[object Object]
Case 4
Case 4 ,[object Object],[object Object],[object Object]
Case 5 ,[object Object]
Case 5
Case 5 ,[object Object],[object Object],[object Object],[object Object],[object Object]
Case 6 ,[object Object],[object Object]
Case 6 ,[object Object]
Case 6 ,[object Object],[object Object],[object Object]
Chronic Ischemic change = Encephalomalacia
Thrombolysis: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Case 7 ,[object Object],[object Object]
 
Case 7 ,[object Object]
Case 8 ,[object Object]
Case 8
Case 8
Case 8 ,[object Object],[object Object],[object Object],[object Object]
Chronic Small Vessel Disease
Case 9 ,[object Object]
Case 9
Case 9 ,[object Object],[object Object],[object Object]
Case 10 ,[object Object]
Case 10
Case 10 ,[object Object]
Angiographic Brain Death
Case 11 ,[object Object]
Case 11
Case 11 ,[object Object]
Case 12 ,[object Object],[object Object],[object Object]
Case 12
Case 12
Case 12 ,[object Object]

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