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Type A lesions
Type A lesions
Unilateral or bilateral stenoses of CIA
Unilateral or bilateral single short (≤3 cm) stenosis of EIA
Type B lesions
Type B lesions
Short (≤3 cm) stenosis of infrarenal aorta
Unilateral CIA occlusion
Single or multiple stenosis totaling 3–10 cm involving the EIA not extending into the CFA
Unilateral EIA occlusion not involving the origins of internal iliac or CFA
Type C lesions
Type C lesions
Bilateral CIA occlusions
Bilateral EIA stenoses 3–10 cm long not extending into the CFA
Unilateral EIA stenosis extending into the CFA
Unilateral EIA occlusion that involves the origins of internal iliac and/or CFA
Heavily calcified unilateral EIA occlusion with or without involvement of origins of internal iliac and/or CFA
Type D lesions
Type D lesions
Infra-renal aortoiliac occlusion
Diffuse disease involving the aorta and both iliac arteries requiring treatment
Diffuse multiple stenoses involving the unilateral CIA, EIA and CFA
Unilateral occlusions of both CIA and EIA
Bilateral occlusions of EIA
Iliac stenoses in patients with AAA requiring treatment and not amenable to endograft placement or other lesions requiring open aortic or iliac surgery
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