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Proceedings Paper

Functional MRI of the human brain at 1.5 T during auditory, somatosensory, and visual stimulation
Author(s): Manbir Singh
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Paper Abstract

Human studies were conducted to determine the feasibility of functional MRI at 1.5 T during auditory stimulation in the presence of gradient sound generated during a conventional gradient-echo sequence. The gradient-echo pulse sequence was optimized to minimize the effect of gradient sound. Stimuli comprised a simple 1 kHz tone as well as spoken words to investigate possible localization during language comprehension. Also, functional images in response to somatosensory and visual stimulation were generated, albeit with a different gradient-echo sequence to optimize contrast and temporal resolution. The resulting functional images indicate a 2 - 9% increase in signal intensity localized to the corresponding auditory, somatosensory or visual cortical regions during stimulation.

Paper Details

Date Published: 1 May 1994
PDF: 8 pages
Proc. SPIE 2168, Medical Imaging 1994: Physiology and Function from Multidimensional Images, (1 May 1994); doi: 10.1117/12.174401
Show Author Affiliations
Manbir Singh, Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 2168:
Medical Imaging 1994: Physiology and Function from Multidimensional Images
Eric A. Hoffman; Raj S. Acharya, Editor(s)

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