Functional MRI of the human brain at 1.5 T during auditory, somatosensory, and visual stimulation

Manbir Singh

doi:10.1117/12.174401

1 May 1994 Functional MRI of the human brain at 1.5 T during auditory, somatosensory, and visual stimulation

Manbir Singh

Proceedings Volume 2168, Medical Imaging 1994: Physiology and Function from Multidimensional Images; (1994) https://doi.org/10.1117/12.174401
Event: Medical Imaging 1994, 1994, Newport Beach, CA, United States

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.

Citation Download Citation

Manbir Singh "Functional MRI of the human brain at 1.5 T during auditory, somatosensory, and visual stimulation", Proc. SPIE 2168, Medical Imaging 1994: Physiology and Function from Multidimensional Images, (1 May 1994); https://doi.org/10.1117/12.174401

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