Preliminary report: evaluation of three-dimensional echocardiographic volumetry by simultaneous thermal dilution in coronary heart disease.
In 12 patients with coronary heart disease, the end-systolic and end-diastolic left-ventricular volumes were measured employing three-dimensional echocardiography. Cardiac output (COe) and stroke volume (SVe) were calculated and correlation with simultaneous thermal dilution measurements (COth, SVth) was performed. In 9 subjects the variability between the mean heart rate and the heart rate at any given time was found to be < 10% (observer 1:SVe vs. SVth r = 0.78, p < 0.01, COe vs. COth r = 0.86, p < 0.01 and in 9 cases with steady heart rate SVe vs. SVth r = 0.95, p < 0.01; observer 2:SVe vs. SVth r = 0.78, p < 0.01, COe vs. COth r = 0.77, p < 0.01 and in 9 cases with steady heart rate SVe vs. SVth r = 0.93, p < 0.01). Using the new bedside approach three-dimensional imaging and volumetry becomes possible by means of one examination.
Müller
S
S
Department of Cardiology, University of Essen, Germany.
Bartel
T
T
Baumann
G
G
Erbel
R
R
D002302:Cardiac Output; D002306:Cardiac Volume; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D006439:Hemodynamics; D006801:Humans; D016014:Linear Models; D008875:Middle Aged; D018709:Statistics, Nonparametric; D013318:Stroke Volume; D013815:Thermodilution