Abstract
Seven different parameters of both length and width were measured on repeated liver scans of the same patients. According to the scannograms 3 groups were composed and tested: (1) repeated scans were of normal appearance; (2) repeated scans were of pathological appearance, and (3) a pathological scan followed a previously normal one. Differences of measurements between two scans for each parameter showed a significant result in only a few of the parameters. It was concluded that the difference of two measurements performed on one patient’s scannogram are of importance only if dynamic changes have occurred in the liver, as shown in that group where the scan changed from a normal to a pathological scan. However, absolute measurements are necessary when normal scans are compared with pathological ones.