Use of Biplane Cinefluorography for Measurement of Ventricular Volume

A biplane cinefluorographic technic for measuring ventricular volume is described and its accuracy and limitations are assessed. Although rather complicated and time-consuming at present, the method permits construction of volume curves and estimation of stroke volume of the left ventricle for several successive contractions in the intact animal or man. This method may prove most useful for physiologic research and ultimately for diagnostic purposes.