New imaging technology and more sophisticated image processing systems will have a profound effect on those areas of medicine which are concerned with imaging for diagnosis and therapy planning. Digitally formated data will form the basis of an increasing number of medical imaging modalities. Before the diagnostic imaging department of the future will largely be digital, many problems have still to be solved as regards image quality, costs, and ease of use. The computer and other information science derived methods will contribute towards solving many of the problems in these areas. It is...