464-156 | Patterns of Infra-Popliteal Arterial Disease-JVU 464-156

JVU 464-156

Pdf Summary

This article discusses the use of duplex ultrasound (DUS) to identify patterns of infra-popliteal arterial occlusive disease in patients with peripheral arterial disease (PAD) below the knee. The authors performed DUS arterial scans on 100 patients (199 limbs) with suspected PAD and obtained peak systolic velocity (PSV) measurements from the anterior tibial artery (ATA) and posterior tibial artery (PTA) at different calf levels. They also measured the acceleration time (AT) in the distal ATA and PTA segments. The study found that the PTA was the most frequently occluded infra-popliteal artery, with segmental occlusions occurring primarily in the proximal and distal segments. The ATA had a higher rate of segmental occlusion in the mid-calf. The study also observed that proximal PAD prolonged distal infra-popliteal artery AT and reduced distal PSV. These findings contribute to understanding the patterns of infra-popliteal arterial disease and can be useful for sonographers who perform DUS of the lower extremity arteries. The authors highlight the limitations of DUS, such as operator dependence and limited field of view, but emphasize its noninvasive nature and ability to capture anatomic and hemodynamic information. They suggest that further investigation in this area is warranted.

Keywords

duplex ultrasound

infra-popliteal arterial occlusive disease

peripheral arterial disease

PAD

peak systolic velocity

anterior tibial artery

posterior tibial artery

acceleration time

segmental occlusions

lower extremity arteries