S O'Neill1, R K George, W D Wallace, P H Blair, A McKinley. 1. Department of Vascular and Endovascular Surgery, Royal Victoria Hospital, Belfast, BT12 6BA, Northern Ireland, UK. stephenoneill@doctors.org.uk
Abstract
OBJECTIVE: Evaluate whether common femoral artery (CFA) Doppler waveform assessment predicted the presence of significant iliac artery stenosis as visualised on magnetic resonance angiography (MRA). METHOD: Three-year retrospective study of patients investigated using CFA Doppler waveforms and MRA. The patients were identified from vascular/radiology databases. Waveforms were reported real time as monophasic, biphasic or triphasic. Results were compared with MRA findings. RESULTS: In 76 patients, 119 waveforms were assessed. MRA demonstrated 37 iliac vessels with significant stenosis. 32 (86%) had abnormal waveforms (monophasic/biphasic), 5 were triphasic. In 82 cases where MRA showed no significant stenosis, waveforms were abnormal in 35 (43%). Abnormal CFA waveforms have sensitivity of 86% and specificity of 57%. Monophasic waveforms alone were more specific (88%) but less sensitive (57%) for predicting iliac lesions. CONCLUSION: Whilst CFA waveform morphology is a useful adjunct in detection of iliac disease, normal triphasic waveforms do not exclude iliac stenosis.
OBJECTIVE: Evaluate whether common femoral artery (CFA) Doppler waveform assessment predicted the presence of significant iliac artery stenosis as visualised on magnetic resonance angiography (MRA). METHOD: Three-year retrospective study of patients investigated using CFA Doppler waveforms and MRA. The patients were identified from vascular/radiology databases. Waveforms were reported real time as monophasic, biphasic or triphasic. Results were compared with MRA findings. RESULTS: In 76 patients, 119 waveforms were assessed. MRA demonstrated 37 iliac vessels with significant stenosis. 32 (86%) had abnormal waveforms (monophasic/biphasic), 5 were triphasic. In 82 cases where MRA showed no significant stenosis, waveforms were abnormal in 35 (43%). Abnormal CFA waveforms have sensitivity of 86% and specificity of 57%. Monophasic waveforms alone were more specific (88%) but less sensitive (57%) for predicting iliac lesions. CONCLUSION: Whilst CFA waveform morphology is a useful adjunct in detection of iliac disease, normal triphasic waveforms do not exclude iliac stenosis.
Authors: Sandra Spronk; Pieter T den Hoed; Leenoud C W de Jonge; Lukas C van Dijk; Peter M T Pattynama Journal: J Vasc Surg Date: 2005-08 Impact factor: 4.268
Authors: Grzegorz Styczynski; Cezary Szmigielski; Anna Kaczynska; Jerzy Leszczynski; Grzegorz Rosinski; Agnieszka Kuch-Wocial Journal: Int J Cardiovasc Imaging Date: 2011-10-19 Impact factor: 2.357