Abstract
In this paper, we propose a technique for automatic extraction of liver regions and its volumetric measurement by computer employing a set of abdominal CT images of a patient. Given an initial point automatically on a liver area in a CT image, the technique extracts the entire liver region in the image by enlarging the area around the initial point iteratively referring to the original image. The volume is obtained from summing up the number of pixels contained in the liver areas in respective CT images. The technique was applied to eleven abdominal CT image sets (six normal cases and five abnormal cases) and satisfactory results were obtained.