Left Ventricular Volumes by Angiocardiography: Comparison of Methods and Simplification of Techniques

Left ventricular volumes were measured by angiocardiography in 66 patients using different biplane and single plane methods. Regression formulae were calculated so that single plane equipment might be better utilized for volume measurements. A modification of the area-length method is described that simplifies considerably the calculations without altering the final result. A simple method of calculating LV mass is also presented.