Two-dimensional echocardiography (triggered B-scan) correlated strongly with single-plane angiography for assessing left ventricular chamber volume (r=0.88) and ejection fraction (r=0.81).
Observational (n=20)
Does two-dimensional echocardiography accurately determine left ventricular volume and ejection fraction compared to single-plane angiography in patients undergoing routine angiography?
Two-dimensional echocardiography provides a safe, non-invasive, and reliable alternative to angiography for determining left ventricular volume and ejection fraction, particularly in patients with dilated hearts.
Effect estimate: r 0.88
Twenty patients undergoing routine left ventricular single-plane angiography have been investigated by an ultrasonic triggered B-scan technique to provide a two-dimensional cross-sectional image of the left ventricle in end-systole end-diastole. An area-length method has been used to establish the correlation between the angiographic and the echocardiographic assessments of left ventricular chamber volume (r equals 0.88) and ejection fraction (r equals 0.81). Differences between the two techniques are discussed, and it is concluded that in approximately 80 per cent of patients triggered B-scanning may provide a safe, non-invasive, and convenient technique for the determination of volumes and certain functional parameters, especially in patients with dilated hearts and irregular left ventricular shape, where M-scanning is known to be less reliable.
Gehrke et al. (Mon,) conducted a observational in Undergoing routine left ventricular single-plane angiography (n=20). Ultrasonic triggered B-scan technique (two-dimensional echocardiography) vs. Left ventricular single-plane angiography was evaluated on Correlation of left ventricular chamber volume and ejection fraction (r 0.88). Two-dimensional echocardiography (triggered B-scan) correlated strongly with single-plane angiography for assessing left ventricular chamber volume (r=0.88) and ejection fraction (r=0.81).