Liver volume determination by ultrasound: a feasibility study.

The feasibility and precision of an ultrasound method for determining the volume of the liver have been assessed using a Nuclear Enterprises B-scan machine. A relation between estimated liver volume and body weight has been established, showing that liver volume can be determined with a precision of +/- 195 cm3 (P less than or equal 0-05). With the standard non-grey-scale imaging technique employed there is a degree of uncertainty in deciding the liver boundaries, and this constitutes the major source of error.