Abstract: Introduces a computer post-processing system for medical images capable of performing such processes as magnification, enhancement, convertion, combination and false colouring to all kinds of output films of haging equipment, as well as performing 3-dimentional rebuilding of mere than one hager. Using a personal computer, the system can solve problems that might be encountered during rapid computation of large numbers of data, mathematical modelling of 3-dimentional rebuilding and decision algorithms. It provides the medical personnel with an efficient tool for clinical diagnosis.