Corticospinal tract localization: integration of diffusion-tensor tractography at 3-T MR imaging with intraoperative white matter stimulation mapping--preliminary results.

Abstract:

:Institutional review board approval and written informed consent were obtained. The purpose of this study was to prospectively validate usefulness of diffusion-tensor (DT) fiber tractography of the corticospinal tract at 3-T magnetic resonance imaging, in combination with the subcortical motor-evoked potential (MEP) technique, as a tool for tractography-guided neurosurgery. DT imaging and corticospinal tractography were performed at 3 T in eight patients (four men, four women; mean age, 41 years; age range, 23-58 years) with intracranial space-occupying lesions. Tractography data were transferred to a neuronavigation system, and tractography-guided neurosurgery was performed. During lesion resection, subcortical MEPs were recorded. Positive MEP response was observed in four patients. No patients developed new motor weakness postoperatively. Complementary use of tractography and MEP may be useful for intraoperative depiction of corticospinal tracts.

journal_name

Radiology

journal_title

Radiology

authors

Okada T,Mikuni N,Miki Y,Kikuta K,Urayama S,Hanakawa T,Fushimi Y,Yamamoto A,Kanagaki M,Fukuyama H,Hashimoto N,Togashi K

doi

10.1148/radiol.2403050916

subject

Has Abstract

pub_date

2006-09-01 00:00:00

pages

849-57

issue

3

eissn

0033-8419

issn

1527-1315

pii

2403050916

journal_volume

240

pub_type

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