Functional MR (f-MR) is a non-invasive imaging study that involves the measurement of dynamic blood oxygen level-dependent signal parameters within the brain. f-MR illustrates how the brain thinks and initiates activities by monitoring brain activity as the patient is asked to perform tasks such as finger tapping or recitation of number sequences.
These activities cause changes in chemical composition of involved areas of the brain. f-MR produces images of the involved areas of the brain, pinpointing abnormalities and identifying important areas of the brain that control movement, speech and senses—areas to be avoided during surgery. f-MR is also used to acquire real-time, 3D information of the brain that is used in conjunction with Hoag’s Gamma Knife and stereotactic biopsy system.
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