Keywords: Muscle, PerfusionThis study incorporated the Fourier decomposition (FD) technique to the lower extremity blood oxygen level-dependent, or reactive hyperemia, technique to evaluate the perfusion level of lower limbs. A periodically repeated ischemia-reperfusion paradigm was used to support the frequency analysis in FD. A characteristic frequency intensity corresponding to the ischemia-reperfusion cycle frequency was observed. The feasibility of the proposed method was demonstrated on healthy subjects.
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