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A method has been described for directly determining left ventricular stroke volume in man through the use of biplane angiocardiography. Left ventricular stroke volume determined by this method has been compared with stroke volumes determined by the Fick and/or indicator-dilution methods in 14 subjects without arrhythmias or clinical evidence of valvular insufficiency. Stroke volumes determined by these various methods showed close agreement.

An Angiocardiographic Method for Directly Determining Left Ventricular Stroke Volume in Man