title: Comparison of gray-scale and B-color ultrasound images in evaluating left ventricular systolic function in coronary artery disease.
abstract: To confirm whether or not echocardiographic B-color images (temperature, magenta, rainbow) are superior to ordinary gray-scale images, 62 coronary artery disease (CAD) patients (42 men and 20 women) underwent gray-scale and B-color echocardiography and cineangiography within 24 hours. Left ventricular (LV) volume was derived from angiography using the single-plane area-length method and was derived from echocardiography using single-plane modified Simpson's formula. In predicting angiographic volume, the correlations between B-color images and angiography were similar to that between the gray-scale image and angiography. In evaluating LV ejection fraction, the correlation coefficients between B-color images and angiography (temperature r = 0.93, magenta r = 0.93, rainbow r = 0.92) were slightly higher than that between the gray-scale image and angiography (r = 0.85) (p less than 0.05). We conclude that B-color images yield estimates of LV volumes that are of similar accuracy to gray-scale images in patients with CAD.
authors.affiliation: Division of Cardiology, College of Medicine, University of Kentucky, Lexington 40536-0084.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Huang
authors.forename: W Y
authors.initials: WY
authors.lastname: Long
authors.forename: G Y
authors.initials: GY
authors.lastname: Xie
authors.forename: O L
authors.initials: OL
authors.lastname: Kwan
authors.forename: A N
authors.initials: AN
authors.lastname: DeMaria
mesh_terms: D002932:Cineangiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D004452:Echocardiography / Q000379:methods*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007472:Iohexol; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D012044:Regression Analysis; D016277:Ventricular Function, Left / Q000502:physiology*
chemical_list: D007472:Iohexol