In order to measure neuronal activation related rCBF changes quantitatively, we have developed a Flow-sensitive Alternating Inversion Recovery (FAIR) technique, in which perfusion-based functional images can be generated by subtracting two IR images, one with a non-slice-selective IR pulse and another with a slice-selective IR pulse. The method was employed in functional imaging studies of the motor cortex. Activation of the contralateral motor cortex was detected during finger movements in FAIR images. The signal change (~SFAIR) of contralateral motor cortical area in four subjects detected by the FAIR technique was 49 +/- 16% SD, which is in good agreement with PET studies of blood flow.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR008079-04
Application #
5225603
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
4
Fiscal Year
1996
Total Cost
Indirect Cost
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