Clinical Use of Magnetic Resonance Perfusion Imaging to Qualitatively Assess Adequate Distal Perfusion After Endovascular Revascularization in Critical Limb Ischemia

Clinical Use of Magnetic Resonance Perfusion Imaging to Qualitatively Assess Adequate Distal Perfusion After Endovascular Revascularization in Critical Limb Ischemia

This study evaluates the clinical effectiveness of Magnetic Resonance(MR) perfusion imaging to qualitatively assess adequate distal perfusion after endovascular revascularization in Critical Limb Ischemia

Inclusion Criteria:

• Age 20 and above
• Critical limb ischemia with ulcer
• Ankle brachial index(ABI) ≤ 0.9 or Toe brachial index (TBI) ≤ 0.5 or Transcutaneous oxygen pressure (TcPo2) ≤ 40mmHg
• ≥ 70 percentage of stenosis of infrapopliteal artery on lower extremity computed tomography angiography or lower extremity doppler
• Subject understands protocol and provides written, informed consent

Exclusion Criteria:

• Post-traumatic critical limb ischemia
• Neurogenic limb ischemia
• Life expectancy ≤ 2 years