Key result
Biplane cineradiography at 15 frames per second generated left ventricular volume curves with less than 5% error compared to 270 frames per second.
Why the study?
Does a slower frame rate of 15 frames per second provide accurate left ventricular volume measurements compared to 270 frames per second in biplane cineradiography?
Does a slower frame rate of 15 frames per second provide accurate left ventricular volume measurements compared to 270 frames per second in biplane cineradiography?
A filming rate of 15 frames per second is adequate for measuring left ventricular volume by biplane cineradiography with less than 5% error.
Answers are grounded in this paper and cite their sources.
May support lower-dose 15 fps LV volumetry; leaves open validation in contemporary digital systems.
The left ventricular volume curve was plotted from biplane cineangiograms at 270 frames per second, using Simpson's rule to measure the volume. Fourier transformation was applied to obtain the frequency spectrum of the curve. Volume curves at slower rates were produced. Curves with less than 5% error can be generated at 15 frames per second because of the low frequency content. This rate of filming was adequate to measure left ventricular volume by biplane cineradiography.
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Freeman et al. (1970) studied Left ventricular volumetry. 15 frames per second cineradiography vs. 270 frames per second was evaluated on Volume curve error. Biplane cineradiography at 15 frames per second generated left ventricular volume curves with less than 5% error compared to 270 frames per second.
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