Hemodynamic evaluation of saphenous vein coronary artery bypass grafts: Relative merits of Doppler flow velocity and SPECT perfusion imaging

Coronary angiography is considered the gold standard in evaluating vein graft disease; however, angiography does not allow assessment of hemodynamic consequences of lesions. In this study hemodynamic consequences of significant stenoses in vein grafts were evaluated by Doppler velocity assessment, a...

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Bibliographic Details
Published in:Journal of nuclear cardiology 2005-09, Vol.12 (5), p.545-552
Main Authors: Salm, Liesbeth P., Bax, Jeroen J., Jukema, J. Wouter, Langerak, Susan E., Vliegen, Hubert W., Steendijk, Paul, Lamb, Hildo J., de Roos, Albert, van der Wall, Ernst E.
Format: Article
Language:English
Subjects:
Aged
Agreements
Blood Flow Velocity
Cardiology
Coronary Angiography - statistics & numerical data
Coronary Artery Bypass - statistics & numerical data
coronary artery bypass grafting
Coronary Artery Disease - diagnosis
Coronary Artery Disease - epidemiology
Coronary Artery Disease - surgery
Coronary flow velocity reserve
Coronary vessels
Female
Flow velocity
Hemodynamics
Humans
Incidence
Laser-Doppler Flowmetry - statistics & numerical data
Male
Medical imaging
Reproducibility of Results
Risk Assessment - methods
Risk Factors
Saphenous Vein - diagnostic imaging
Saphenous Vein - transplantation
Sensitivity and Specificity
single photon emission computed tomography
Stents
Tomography, Emission-Computed, Single-Photon - statistics & numerical data
Ultrasonography
Veins & arteries
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Description
Summary:Coronary angiography is considered the gold standard in evaluating vein graft disease; however, angiography does not allow assessment of hemodynamic consequences of lesions. In this study hemodynamic consequences of significant stenoses in vein grafts were evaluated by Doppler velocity assessment, and results were compared with single photon emission computed tomography (SPECT) perfusion imaging. Angiography was performed in 58 patients after coronary artery bypass grafting because of recurrent chest pain. During the procedure, Doppler velocity measurements were acquired before and after administration of adenosine. Of 58 patients (with 78 vein grafts), 20 patients (with 24 vein grafts) underwent SPECT perfusion imaging. Grafts were divided into those with nonsignificant percent diameter stenosis (
ISSN:1071-3581
1532-6551
DOI:10.1016/j.nuclcard.2005.04.015