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Proceedings Paper

Subdural and depth electrode placement in the brain for validation of MEG in partial epilepsy
Author(s): Mohammad-Reza Siadat; Kost Elisevich; Hamid Soltanian-Zadeh; Kourosh Jafari-Khouzani; Susan Bowyer
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Paper Abstract

Localization of epileptogenic zones in extratemporal epilepsy is a challenging problem. We speculate that using all modalities of data in an optimal way can facilitate the localization of these zones. In this paper, we propose the following steps to transfer all modalities of data in a single reference coordinate system: 1) Segmentation of subdural and depth electrodes, and cortical surface. 2) Building 3D models of the segmented objects. 3) Registration of preoperative MRI and postoperative CT, and magnetoencephalography (MEG). The above steps result in fusion of all modalities of data, objects of interests (electrodes and cortical surface), MEG analysis results and brain mapping findings. This approach offers a means by which an accurate appreciation of the zone of epileptogenicity may be established through optimal visualization and further quantitative analyses of the fused data. It also provides a ground for validation of less expensive and noninvasive procedures, e.g., scalp EEG, MEG.

Paper Details

Date Published: 10 March 2006
PDF: 8 pages
Proc. SPIE 6141, Medical Imaging 2006: Visualization, Image-Guided Procedures, and Display, 61412A (10 March 2006); doi: 10.1117/12.657012
Show Author Affiliations
Mohammad-Reza Siadat, Henry Ford Health System (United States)
Kost Elisevich, Henry Ford Health System (United States)
Hamid Soltanian-Zadeh, Henry Ford Health System (United States)
Univ. of Tehran (Iran)
Kourosh Jafari-Khouzani, Henry Ford Health System (United States)
Susan Bowyer, Henry Ford Health System (United States)


Published in SPIE Proceedings Vol. 6141:
Medical Imaging 2006: Visualization, Image-Guided Procedures, and Display
Kevin R. Cleary; Robert L. Galloway, Jr., Editor(s)

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