An approach to MRI-based dosimetry for transcranial magnetic stimulation

被引：7

作者：

Hernandez-Garcia, Luis ^{[1
]}

Lee, Sangwoo ^{[1
]}

Grissom, William ^{[1
]}

机构：

[1] Funct MRI Lab, Ann Arbor, MI 48109 USA

来源：

NEUROIMAGE | 2007年 / 36卷 / 04期

关键词：

ECHOPLANAR BOLD FMRI; MOTOR CORTEX; NERVE-STIMULATION; BRAIN; TMS; CONNECTIVITY;

D O I：

10.1016/j.neuroimage.2007.03.064

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

A new MRI-based measurement of the magnetic vector field distribution generated by a transcranial magnetic stimulation (TMS) probe is introduced in this study. Projections of the static magnetic field produced by a DC current in a TMS probe onto the axis of the scanner's main field (B-0) can be measured using a conventional B-0 field-mapping technique. The remaining Cartesian components can then be calculated from projections obtained at different orientations of the sample and probe. The measured static field can then be scaled to calculate the effects of a dynamic TMS pulse. This article includes a study demonstrating the feasibility of this approach on a phantom and a human subject. (C) 2007 Elsevier Inc. All rights reserved.

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收藏

页码：1171 / 1178

页数：8

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