[Reproducibility of sonographic measurements in the follow-up of liver size].

Liver diameters determined in various standardised sonographic section planes are investigated concerning their reproductiveness and validity in controls of liver size. The most reliable parameters proved to be the length in the posterior axillary line, the maximised depths of the right lobe at the portal branching and at the venous confluence, and the maximised length, breadth and thickness of the left lobe. Accuracy is improved by mean values calculated from the diameters of the adjacent longitudinal sections in the axillary lines and of the maximised depth sections of the right lobe. There are no significant differences of liver diameters caused by methodical aberrations, which are found to be 0.5-1.5%, whereas individual variations of the diameters are differentiated by the method. Correlations of the various liver diameters are investigated.