Irina
Mader1, Constantin Anastasopoulos1, Valerij G. Kiselev2,
Andreas Schulze-Bonhage3, Marco Reisert2
1Clinic for Neuroradiology, University
Hospital Freiburg, Freiburg, Germany; 2MR Physics, Department of
Radiology, University Hospital Freiburg, Freiburg, Germany; 3Section
for Pre-surgical Epilepsy Diagnostics, Clinic for Neurosurgery, University
Hospital Freiburg, Freiburg, Germany
Problem:
The protection of functional fiber bundles is essential in epilepsy surgery.
The aim was to compare FACT, probability maps and Gibbs tracking in their
relevance for the neurosurgeon. Methods: Ten patients received pre-operative
fiber tracking (5 corticospinal tract, 5 optic radiation). Results:
Probability maps and GIBBS tracking were successful for all fiber structures
on the healthy and the pathologic side, whereas FACT was only successful in 5
cases on the pathological side and 6 on the healthy side. Conclusion:
Probability maps and Gibbs tracking are superior to FACT. A higher
specificity of Gibbs cannot be shown at the moment.