. Author manuscript; available in PMC: 2017 Jan 20.

Published in final edited form as: IEEE EMBS Int Conf Biomed Health Inform. 2016 Apr 21;2016:126–131. doi: 10.1109/BHI.2016.7455851

Table 2.

Key Words - NLP algorithm for ascertainment of PAD status

Confirmation Key Words - Disease Location

lower extremities/extremity; lower limbs/limb; Leg
/legs; Iliac/femoral/tibial/popliteal artery/arteries;
Distal/ infrarenal /abdominal aorta/aorto (bi)iliac/ aorto
(bi)iliac/aorto(bi)-iliac; aorto-(bi)femoral; foot, toe,
toes, shin; plantar, heel, ankle, interdigital;
below/above knee, Claudication/calf pain; Ischemic
ulcer/ulcers; ASO/Arteriosclerosis obliterans/ arterial
sclerosis obliterans/atherosclerotic disease; PAD/
Peripheral arterial disease/Peripheral vascular disease
/Peripheral arterial occlusive disease.

Confirmation Key Words - Diagnosis

Arterial occlusive disease/occlusion/occluded;
Stenosis; non compressible vessels (NCV), non-
compressible arteries (NCA), poorly compressible
vessels (PCV), stiff vessels/ arteries ischemia; positive
ABI/ankle brachial index/ vascular labs/ extremities
study /arterial studies; revascularization/ recanalization
/ bypass /
angioplasty/PTA/stenting/stent/graft/endarterectomy/
endarterectomies; thrombectomy/ thrombosis/
thromboembolectomy/ embolectomy/embolectomies.

Exclusion Key Words

Family history of, Upper extremities/Upper extremity;
Arm/arms, hand(s); Brachial artery, axillary artery,
radial artery, ulnar artery; carotid, innominate artery,
subclavian artery; mesenteric artery; celiac artery;
AAA, abdominal aortic aneurysm/abd aortic aneurysm;
renal arteries/artery; coronaries, coronary arteries/ artery
/cerebrovascular-disease /arteries/artery; Amputation;
traumatic/trauma; sarcoma/osteoma; pseudoclaudication
/pseudoclaudicatory pain. diabetic foot, hammer toe/
toes; vascular calcification; varicose veins