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Harmonic imaging has increased the yield of quantifiable scans in two-dimensional echocardiography. Although real-time three-dimensional echocardiography avoids geometric assumptions in volume analysis, accurate measurement can be limited by image quality. This study compared volumes from a balloon model mimicking the left ventricle, scanned with and without harmonic imaging, using real time three-dimensional echocardiography.

european journal of echocardiography

Impact of Harmonic Imaging and Transducer Frequency on 'Ventricular Volume' Measurements Using Real-Time Three-Dimensional Echocardiography: Studies in an In Vitro Model