Journal article
Fast spin-echo characteristics of visual stimulation-induced signal changes in the human brain
Journal of magnetic resonance imaging, Vol.5(6), pp.709-714
11/1995
DOI: 10.1002/jmri.1880050615
PMID: 8748490
Abstract
A fast spin-echo (FSE) technique used in a conventional MR imaging scanner has been successfully developed for obtaining functional MR images with high spatial resolution and multiple slices. Our preliminary visual stimulation studies using the FSE technique show that the nuclear MR signal increases by 2.6% during activation in the primary visual cortex. These results provide evidence that the diffusion of tissue water molecules plays a key role in determining functional MR signal amplitude. Because the FSE functional MR imaging signal is extremely sensitive to microvascular (brain capillaries) hemodynamics, the FSE technique can be a powerful tool for studying the neuronal activity of the human brain.
Details
- Title: Subtitle
- Fast spin-echo characteristics of visual stimulation-induced signal changes in the human brain
- Creators
- Jia-Hong Gao - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240Jinhu Xiong - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240Jinqi Li - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240Joseph Schiff - Elscint. Ltd. Haifa. IsraelJohn Roby - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240Jack L Lancaster - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240Peter T Fox - Research Imaging Center. The University of Texas Health Science Center at San Antonio. 7703 Floyd Curl Dr. San Antonio. TX 78284-6240
- Resource Type
- Journal article
- Publication Details
- Journal of magnetic resonance imaging, Vol.5(6), pp.709-714
- Publisher
- Wiley Subscription Services, Inc., A Wiley Company
- DOI
- 10.1002/jmri.1880050615
- PMID
- 8748490
- ISSN
- 1053-1807
- eISSN
- 1522-2586
- Number of pages
- 6
- Language
- English
- Date published
- 11/1995
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering
- Record Identifier
- 9984083884402771
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