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Preoperatieve fMRI/DTI
   combinatie met 1.5 T
Aart I. Issa-Epe, AIOS Radiologie MCA
             B.M. Wiarda
               W.F. Tan
              P.R. Algra
Doel
• Neurochirurgische patiënten:
  – Functional magnetic resonance imaging (fMRI)
  – Diffusion tensor imaging (DTI) fiber tracking
fMRI en DTI
• Significant effect op chirurgische planning
• Agressievere benadering1
• Bevestiging irresectabiliteit1




  Petrella JR, Shah LM, Harris KM, Friedman AH, George TM, Sampson JH, Pekala JS, Voyvodic JT. Preoperative
  1

  Functional MR Imaging Localization of Language and Motor Areas: Effect on Therapeutic Decision Making in
                  Patients with Potentially Resectable Brain Tumors. Radiology 2006;3:793-802.
fMRI
• Verandering oxygenatie haemoglobine
• Verandering magnetische eigenschappen
• Verschillen oxyhaemoglobine en
  deoxyhaemoglobine
DTI
• Oriëntatie witte stof banen
• Anisotropische eigenschappen
• Watermoleculen in axonen diffunderen meer
  in de lengterichting dan loodrecht
  – Myeline omgeven banen
De praktijk
• 1.5 T MRI (Siemens Avanto)
• fMRI en DTI  radioloog en neurochirurg
De praktijk
• Specifieke corticale gebieden
  – Motorisch
  – Spraakcentrum
  – Visueel
• 11 fasen
  – 6 rust
  – 5 stimulatie
• 30 tot 60 minuten
Motorische cortex
• Finger tapping
• Wijsvinger en duim tegen elkaar tikken
Spraakcentrum
• Woorden maken
• Met letter woorden maken
Visuele cortex
• Plaatjes benoemen
• Figuur op scherm in hoofd benoemen
Casus 1, V 53 jr
Casus 2, M 61 jr
Casus 3, M 67 jr
Casus 4, V 47 jr
Conclusie
• Met 1.5 T adequate fMRI en DTI preoperatief
• Combinatie van fMRI en DTI betere weergave
  kritieke corticale gebieden en zenuwbanen
• Goede samenwerking belangrijk voor kwaliteit
  en beoordeling
Referenties
•   1. Petrella JR, Shah LM, Harris KM, Friedman AH, George TM, Sampson JH, Pekala
    JS, Voyvodic JT. Preoperative Functional MR Imaging Localization of Language and
    Motor Areas: Effect on Therapeutic Decision Making in Patients with Potentially
    Resectable Brain Tumors. Radiology 2006;3:793-802.
•   2. Wilkinson ID, Romanowski CAJ, Jellinek DA, Morris J, Griffiths PD. Motor
    functional MRI for pre-operative and intraoperative neurosurgical guidance. The
    British Journal of Radiology 2003;76:98-103.
•   3. Ten Donkelaar HJ. Clinical Neuroanatomy. Brain Circuitry and Its Disorders.
    2011:107-131.
•   4. Krasnow B, Tamm L, Greicius MD, Yang TT, Glover GH, Reiss AL, Menon V.
    Comparison of fMRI activation at 3 and 1.5 T during perceptual, cognitive and
    affective processing. NeuroImage 2003;18:813-826.
•   5. Voss HU, Zevin JD, McCandliss BD. Functional MR Imaging at 3.0 T versus 1.5 T:
    A Practical Review. Neuroimaging Clinics of North America 2006;16:285-297.
Met dank aan
• B.M. Wiarda, radioloog MCA
• W.F. Tan, neurochirurg MCA
• P.R. Algra, radioloog MCA

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F Mri Radiologendagen 2012 Aart Issa

  • 1. Preoperatieve fMRI/DTI combinatie met 1.5 T Aart I. Issa-Epe, AIOS Radiologie MCA B.M. Wiarda W.F. Tan P.R. Algra
  • 2. Doel • Neurochirurgische patiënten: – Functional magnetic resonance imaging (fMRI) – Diffusion tensor imaging (DTI) fiber tracking
  • 3. fMRI en DTI • Significant effect op chirurgische planning • Agressievere benadering1 • Bevestiging irresectabiliteit1 Petrella JR, Shah LM, Harris KM, Friedman AH, George TM, Sampson JH, Pekala JS, Voyvodic JT. Preoperative 1 Functional MR Imaging Localization of Language and Motor Areas: Effect on Therapeutic Decision Making in Patients with Potentially Resectable Brain Tumors. Radiology 2006;3:793-802.
  • 4. fMRI • Verandering oxygenatie haemoglobine • Verandering magnetische eigenschappen • Verschillen oxyhaemoglobine en deoxyhaemoglobine
  • 5. DTI • Oriëntatie witte stof banen • Anisotropische eigenschappen • Watermoleculen in axonen diffunderen meer in de lengterichting dan loodrecht – Myeline omgeven banen
  • 6. De praktijk • 1.5 T MRI (Siemens Avanto) • fMRI en DTI  radioloog en neurochirurg
  • 7. De praktijk • Specifieke corticale gebieden – Motorisch – Spraakcentrum – Visueel • 11 fasen – 6 rust – 5 stimulatie • 30 tot 60 minuten
  • 8. Motorische cortex • Finger tapping • Wijsvinger en duim tegen elkaar tikken
  • 9. Spraakcentrum • Woorden maken • Met letter woorden maken
  • 10. Visuele cortex • Plaatjes benoemen • Figuur op scherm in hoofd benoemen
  • 11. Casus 1, V 53 jr
  • 12. Casus 2, M 61 jr
  • 13. Casus 3, M 67 jr
  • 14. Casus 4, V 47 jr
  • 15. Conclusie • Met 1.5 T adequate fMRI en DTI preoperatief • Combinatie van fMRI en DTI betere weergave kritieke corticale gebieden en zenuwbanen • Goede samenwerking belangrijk voor kwaliteit en beoordeling
  • 16. Referenties • 1. Petrella JR, Shah LM, Harris KM, Friedman AH, George TM, Sampson JH, Pekala JS, Voyvodic JT. Preoperative Functional MR Imaging Localization of Language and Motor Areas: Effect on Therapeutic Decision Making in Patients with Potentially Resectable Brain Tumors. Radiology 2006;3:793-802. • 2. Wilkinson ID, Romanowski CAJ, Jellinek DA, Morris J, Griffiths PD. Motor functional MRI for pre-operative and intraoperative neurosurgical guidance. The British Journal of Radiology 2003;76:98-103. • 3. Ten Donkelaar HJ. Clinical Neuroanatomy. Brain Circuitry and Its Disorders. 2011:107-131. • 4. Krasnow B, Tamm L, Greicius MD, Yang TT, Glover GH, Reiss AL, Menon V. Comparison of fMRI activation at 3 and 1.5 T during perceptual, cognitive and affective processing. NeuroImage 2003;18:813-826. • 5. Voss HU, Zevin JD, McCandliss BD. Functional MR Imaging at 3.0 T versus 1.5 T: A Practical Review. Neuroimaging Clinics of North America 2006;16:285-297.
  • 17. Met dank aan • B.M. Wiarda, radioloog MCA • W.F. Tan, neurochirurg MCA • P.R. Algra, radioloog MCA