Dynamic Computed Tomography Angiography: Role in the Evaluation of Popliteal Artery Entrapment Syndrome

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-010-9925-8· OSTI ID:21608717

Anil, Gopinathan; Tay, Kiang-Hiong ^[1]; Howe, Tse-Chiang ^[2]; Tan, Bien-Soo ^[1]

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1. Singapore General Hospital, Interventional Radiology Centre, Department of Radiology (Singapore)
2. Raffles Hospital, Department of Radiology (Singapore)

This study reviews our experience with dynamic computed tomographic angiography (CTA) as an imaging modality in the evaluation of popliteal artery entrapment syndrome (PAES). Eight patients with surgically proven PAES were included in this study. Dynamic CTA studies performed with the feet in neutral and plantar flexed positions were reviewed for the detailed anatomy of the region and to define the location and extent of the stenosis, occlusions and collateral circulation. These findings were compared with intraoperative observations. CTA provided adequate angiographic and anatomic information required to arrive at the diagnosis and make a surgical decision. Thirteen limbs were affected in eight patients. There was popliteal artery occlusion in four limbs, stenosis at rest that was accentuated on stress imaging in two limbs, and patent popliteal artery with marked stenosis on stress imaging in seven limbs. Long-segment stenosis was seen in functional entrapment compared to short-segment stenosis in anatomic PAES. Anteroposterior compression of the popliteal artery in anatomic PAES unlike the side-to-side compression in functional PAES was a unique observation in this study. The CTA and surgical characterisation and classification of PAES matched in all the patients, except for misinterpretation of compressing fibrous bands as accessory slips of muscles in three limbs. In conclusion, dynamic CTA is a robust diagnostic tool that provides clinically relevant information and serves as a rapidly performed and easily available 'one-stop-shop' imaging modality in the management of PAES.

• OSTI ID: 21608717
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 2 Vol. 34; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ANATOMY
ARTERIES
BIOLOGY
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
EVALUATION
FEET
LEGS
LIMBS
MEDICINE
MUSCLES
NUCLEAR MEDICINE
ORGANS
PATIENTS
RADIOLOGY
SLIP
SURGERY
TOMOGRAPHY