Why the study?
Does ultrasound measurement of left ventricular internal dimension correlate with angiocardiographic left ventricular volume determinations in patients?
Does ultrasound measurement of left ventricular internal dimension correlate with angiocardiographic left ventricular volume determinations in patients?
Echocardiographic measurements of left ventricular internal dimensions correlate well with angiographic volumes, suggesting its utility as a noninvasive technique for quantitative estimation of LV volumes.
Echo LVID correlates with angiographic volumes; supports noninvasive LV estimation but leaves open prospective validation.
A technique has been developed for measuring the distance between the interventricular septum and the posterior wall of the left ventricle using pulsed reflected ultrasound. This measurement was labeled left ventricular internal dimension (LVID) and was obtained at end-diastole (LVIDd) and at end-systole (LVIDs). These ultrasound dimensions were compared with angiocardiographic left ventricular volume determinations on 42 patients. The ultrasound LVID correlated well with the corresponding angiographic volume measurements, especially when LVID was cubed. The correlation between LVIDd³minus LVIDs³and left ventricular stroke volume was also highly significant. These initial results are quite promising and suggest that although there remain some unresolved problems and limitations, echocardiography ultimately may provide a clinically useful, noninvasive technique for quantitative estimations of left ventricular volumes in man.
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H. Feigenbaum (1972) studied this question.
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