Comparison of localizing motor area before the surgery based on resting-state functional MRI with independent component analysis and electric cortical stimulation
10.3760/cma.j.issn.1005-1201.2017.05.003
- VernacularTitle:基于独立成分分析的静息态MRI脑功能成像与皮层电刺激在脑部病变运动区术前定位中的对照研究
- Author:
Xiaojun SUN
;
Jianhua YUAN
;
Dewang MAO
;
Han ZHANG
;
Shuda CHEN
;
Zhongxiang DING
;
Yumei LI
- Keywords:
Magnetic resonance imaging;
Cerebral cortex;
Electric stimulation;
Comparative study
- From:
Chinese Journal of Radiology
2017;51(5):334-338
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the accuracy of presurgically resting-state fMRI(rs-fMRI) with subject order-independent group independent component analysis(ICA), compared to electric cortical stimulations. Methods Twenty-three patients with the lesion in motor area, which were recorded by our hospital from Jan, 2014 to Dec, 2015, were collected as the study sample. The data of 9 patients were excluded because of excessive head motion. As a result, 14 patients were included in this study. Rs-fMRI data before the surgery and the results of electric cortical stimulations were collected. Results All of this 14 patients were preoperatively located by rs-fMRI with SOI-GICA, including all the SMA and the ipsilesional primary motor area. On the side with lesion, the number of functional location of motor area was decreased compared with healthy side. Evaluate the accuracy of ICA by comparing the coincidence rate of these two techniques, based on the standardized electrical cortical stimulation in operation. The completely concordance between rs-fMRI with the SOI-GICA and electrical cortical stimulation in operation was 11 (11/14). Meanwhile the basically concordance of corresponded case was 3(3/14). Conclusions Rs-fMRI with the ICA has a relatively high accuracy rate in localizing motor area. Rs-fMRI has a remarkably referential contribution to the presurgically function assessment and surgical planning in implementation.
