Journal of Ultrasound in Medicine, Vol 2, Issue 4 151-154, Copyright © 1983 by American Institute of Ultrasound in Medicine
Ultrasonographic determination of renal mass and renal volume
T. B. Jones, L. R. Riddick, M. D. Harpen, R. L. Dubuisson and D. Samuels
Volumes and surface areas of 45 kidneys were determined
ultrasonographically in vivo before autopsy and in a water bath phantom
after autopsy by means of both the ellipsoid and the stepped section
methods. Comparison of results revealed that renal volume may be determined
by the simplest method, the ellipsoid method, with sufficient accuracy for
clinical use. Results also revealed that renal mass expressed in grams may
be directly obtained from renal volume expressed in milliliters, but mass
in grams was found to correlate better with renal surface area than with
renal volume. A formula relating renal mass to both volume and surface area
was developed from regression analysis of the data and was found to provide
a more precise estimate of renal mass than does mass computed from either
volume or surface area alone.