BOLD MRI as a Surrogate of Improved Muscle Oxygenation Following Endovascular Therapy for the Treatment of CLI

A fixed air cuff will be placed on the index limb at the level of the calf and will be inflated to a level which induces the loss of the pedal Doppler signal. Inflation will be maintained for 180 seconds, then will be rapidly deflated and BOLD MR imaging will be initiated.