Angiocardiographic methods for determination of left ventricular geometry and volumeMethods are described for calculating left ventricular (LV) dimensions and chamber volumes from radiographic films. The use of biplane films for the calculation of LV volume and volume change is based on the assumption of an ellipsoidal geometry. Calculation of LV volumes from biplane films usually overestimated known volumes in postmortem hearts regardless of the methods used for volume calculation. The reasons for this are probably best explained by the fact that a smooth-surface ellipse is used to represent the irregular cavity of the LV chamber. LV volume calculated from data in a single plane compared favorably and closely with volumes calculated from biplane films. A table of normal values of ventricular volume established by angiographic studies is presented.
Document ID
19740056882
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Sandler, H. (NASA Ames Research Center Biomedical Research Div., Moffett Field; Stanford University, Palo Alto, Calif., United States)
Dodge, H. T. (Washington, University Seattle, Wash., United States)