Table 1.

Criteria Diagnosis of PAD Based Primarily on the Type of PAD

Diagnosis	Criteria Diagnosis
Carotid artery stenosis (CAS)12	At least 1 of the following: Reporting of >20% stenosis with plaque visible by carotid DUS* in Common Carotid Artery (CCA) or Internal Carotid Artery (ICA). OR Reporting evidence of >20% stenosis in11 CCA or ICA by MRA or catheter‐based angiography, measured according to NASCET criteria. OR History of prior angioplasty, stenting, or surgical open carotid endarterectomy
Lower extremity peripheral artery disease (LEAD)12	At least 1 of the following: ABI<0.90 in at least 1 lower extremity. OR Reporting of >50% stenosis at least 1 lower extremity by DUS*, MRA, CTA, or catheter‐based angiography. OR History of prior angioplasty, stenting, or open surgical bypass procedure
Aortic abdominal aneurysm (AAA), or dissection12	At least 1 of the following: Reporting of AAA or dissection by DUS, MRA, or CTA. OR History of or repair of AAA or dissection
Renal artery stenosis (RAS)12	At least 1 of the following: Reporting of >50% stenosis or hemodynamically significant stenosis by DUS*, MRA, catheter‐based angiography, or abdominal aortography. OR History of prior angioplasty or stenting
Upper extremity artery stenosis (defined as stenotic of subclavian or brachial artery)13	At least 1 of the following: Reporting of hemodynamically significant stenosis by angiography. OR History of prior angioplasty or stenting

ABI indicates ankle–brachial index; CTA, computed tomography angiography; DUS, duplex ultrasound; MRA, magnetic resonance angiography; NASCET, North American Symptomatic Carotid Endarterectomy Trial; PAD, peripheral artery disease.

*Determining percentage stenosis based on internally developed diagnosis criteria in the noninvasive vascular laboratory of the Cleveland Clinic.