Derivation of cardiac mechanical parameters from serial biplane angiocardiograms.

Abstract
Data handling methods and logorithms were developed for removing the tedious task of hand calculation of left ventricular volumes and weight, stress-tension relations, circumference, and work from biplane angiocardiographic data. These methods were so planned and arranged that they can be carried out on a small, laboratory-oriented digital computer. In effect, they have reduced the information availability time to less than 3 hr. so that the procedure becomes feasible for clinical evaluation of patient status.

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