A cardiac cineangiogram is an X-ray motion picture of a human heart and in particular of the left ventricle. Such film, taken at 50 or more frames per second, is used to acquire precise description of the dynamic geometric changes during contraction and relaxation. The end diastolic volume, end systolic volume, stroke volume, ejection fraction EF and asynergistic motions of the ventricular wall may be determined using such cineangiograms. Usually, it is necessary to measure more than one heart cycle; hence, about 40 to 100 frames must be evaluated per patient. A method is described for the automatic analysis of cineangiograms using simply a minicomputer with a small core memory so that interaction with the operator is possible at any time before the data transfer in the minicomputer memory. A quantitative result is reported concerning EF determination.
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