Author:
Henriksen O.,Larsson H. B. W.,Ring P.,Rostrup E.,Stensgaard A.,Stubgaard M.,Ståhlberg F.,Söndergaard L.,Thomsen C.,Toft P.
Abstract
A preliminary investigation of the effects of stimulation of the visual and the motor cortex was made on a conventional 1.5 T MR imaging scanner. Both types of activation gave a detectable change in the signal between rest and stimulation using a gradient echo sequence with an echo time of 60 ms. The observed effects were assumed to be caused by variation in the amount of paramagnetic deoxyhemoglobin between stimulation and rest due to local increase of capillary blood flow in the human brain during stimulation.
Subject
Radiology Nuclear Medicine and imaging,General Medicine,Radiological and Ultrasound Technology
Cited by
9 articles.
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