Carbon dioxide-angiography for patients with peripheral arterial disease at risk of contrast-induced nephropathy

Figure 2 Carbon dioxide angiography imaging findings. A-C: Carbon dioxide angiography imaging findings of lower extremity vessels of a 71-year-old male with peripheral arterial disease. AO: Aorta; CIA: Common iliac artery; EIA: External iliac artery; SFA: Superficial femoral artery; TP Trunk: Tibioperoneal trunk; ATA: Anterior tibial artery; PTA: Posterior tibial artery.