排序方式: 共有3条查询结果,搜索用时 15 毫秒
1
1.
Valérie Belle Chantal Delon-Martin Raphaël Massarelli Jean Decety Jean-Frangois Le Bas Alim Louis Benabid Christoph Segebarth 《Magma (New York, N.Y.)》1994,2(3):343-345
Functional MR angiography (fMRA) images have been generated from the brain of healthy volunteers, in response to a hand motor task. Two sets of 3D phase-contrast MR images were, therefore, acquired, one during a resting and one during a task activation period. The MR images measured during rest were subtracted from those measured during task performance. The fMRA images were eventually obtained by calculating maximum intensity projections from the set of subtraction images. The results confirm earlier observations that there is a significant functional response from pial veins to motor activity. 相似文献
2.
3.
1