Comparison of muscle BOLD responses to arterial occlusion at 3 and 7 Tesla.

Purpose: The purpose of this study was to determine the feasibility of muscle BOLD (mBOLD) imaging at 7 Tesla (T) by comparing the changes in R2* of muscle at 3 and 7T in response to a brief period of tourniquet-induced ischemia.

Methods: Eight subjects (three male), aged 29.5 ± 6.