Three-dimensional functional magnetic resonance imaging of human brain on a clinical 1.5-T scanner.
收藏PubMed Central1995-07-18 更新2026-05-02 收录
下载链接：
https://pmc.ncbi.nlm.nih.gov/articles/PMC41439/
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资源简介：
Functional magnetic resonance imaging (fMRI) is a tool for mapping brain function that utilizes neuronal activity-induced changes in blood oxygenation. An efficient three-dimensional fMRI method is presented for imaging brain activity on conventional, widely available, 1.5-T scanners, without additional hardware. This approach uses large magnetic susceptibility weighting based on the echo-shifting principle combined with multiple gradient echoes per excitation. Motor stimulation, induced by self-paced finger tapping, reliably produced significant signal increase in the hand region of the contralateral primary motor cortex in every subject tested. IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1995-07-18
