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Motor field sensitivity for preoperative localization of motor cortex.

作者信息

Lin Peter T, Berger Mitchel S, Nagarajan Srikantan S

机构信息

Department of Neurology, Stanford Hospital and Clinics, Stanford, California, USA.

出版信息

J Neurosurg. 2006 Oct;105(4):588-94. doi: 10.3171/jns.2006.105.4.588.

DOI:10.3171/jns.2006.105.4.588
PMID:17044563
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4045015/
Abstract

OBJECT

In this study the role of magnetic source imaging for preoperative motor mapping was evaluated by using a single-dipole localization method to analyze motor field data in 41 patients.

METHODS

Data from affected and unaffected hemispheres were collected in patients performing voluntary finger flexion movements. Somatosensory evoked field (SSEF) data were also obtained using tactile stimulation. Dipole localization using motor field (MF) data was successful in only 49% of patients, whereas localization with movement-evoked field (MEF) data was successful in 66% of patients. When the spatial distribution of MF and MEF dipoles in relation to SSEF dipoles was analyzed, the motor dipoles were not spatially distinct from somatosensory dipoles.

CONCLUSIONS

The findings in this study suggest that single-dipole localization for the analysis of motor data is not sufficiently sensitive and is nonspecific, and thus not clinically useful.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/30d7b3a4fa96/nihms23501f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/4ed8785bdeb0/nihms23501f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/94bf4a5daeea/nihms23501f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/128ac5af4252/nihms23501f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/aaab70a8408c/nihms23501f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/1772e1112c9e/nihms23501f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/30d7b3a4fa96/nihms23501f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/4ed8785bdeb0/nihms23501f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/94bf4a5daeea/nihms23501f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/128ac5af4252/nihms23501f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/aaab70a8408c/nihms23501f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/1772e1112c9e/nihms23501f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/106d/4045015/30d7b3a4fa96/nihms23501f6.jpg

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