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Radiology, Vol 149, 809-813, Copyright © 1983 by Radiological Society of North America

ARTICLES

Left ventricular volume determined from scintigraphy and digital angiography by a semi-automated geometric method

DW Seldin, PD Esser, AB Nichols, SJ Ratner and PO Alderson

The utility of a semi-automatic method of measuring left ventricular (LV) volume geometrically from gated blood-pool studies and digital subtraction angiography (DSA) was investigated using computerized edge detection and spatial calibration algorithms. LAO LV volumes determined from gated blood-pool studies were compared to volumes obtained from contrast left ventriculograms in 21 patients and the applicability of this method to DSA was evaluated in 25 additional patients who also had conventional left ventriculography. There was excellent correlation between the two, both for radionuclide studies and for DSA. Computer- based geometric determinations of LV volume appear to be rapid, accurate, and less dependent on subjective operator decisions than previously reported geometric approaches.




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