대한디지털의료영상학회논문지 (Korean Journal of Digital Imaging in Medicine)
- 제9권2호
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- Pages.31-38
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- 2007
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- 1976-7641(pISSN)
3T에서 뇌 운동피질의 기능적 자기공명영상 연구 : Gradient-Echo와 Spin-Echo EPI의 비교
Functional MR Imaging of Cerebral Motor Cortex on 3 Tesla MR Imaging : Comparison between Gradient and Spin-Echo EPI Techniques
- Goo, Eeu-Hoe (Department of Radiology, Seoul National University Hospital) ;
- Chang, Hye-Won (Department of Radiologic Technology, Juseong College) ;
- Chung, Hwan (DataHub Co., Ltd.)
- 발행 : 2007.12.30
초록
To evaluate the accuracy and extent in the localization of cerebral motor coutex activation using a gradient- echo echo planar imaging(GE-EPI) compared to spin-echo echo planar iimaging(SE-EPI) on 3T MR imaging. Functional MR imaging of cerebral motor cortex activation was examined in GE-EPI and SE-EPI in five healthy male volunteers. A right finger movement was accomplished with a paradigm of 6 task and rest, periods and the cross-correlation was used for a statistical mapping algorithm. We evaluated any sorts of differenced of the time seried and the signal intensity changes between the rest and task periods obtained with two technoques. The qualitative analysis was distributed with activation sites of large veins and small veins by using two techniques and was found that both the techniques were clinically uesful for delineating large veins and small veins in fMRL Signal intensity charge of the rest and activation periods provided simmilar activations in both methods(GE-EPI : 0.93