EURASIP Journal on Applied Signal Processing 2003:5, 403–404 c 2003 Hindawi Publishing Corporation Editorial Jiri Jan Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Purkynova 118, CZ 612 00 Brno, Czech Republic Email: jan@ Milan Sonka Department of Electrical and Computer Engineering, The University of Iowa, 4322 SC, Iowa City, IA 52242, USA Email: milan-sonka@ Ivo Provaznik Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Purkynova 118, CZ 612 00 Brno, Czech Republic Email: ivo@ Modern medical imaging is perhaps the most progressive and also the most appreciated diagnostic tool in health care. Images provided by. | EURASIP Journal on Applied Signal Processing 2003 5 403-404 2003 Hindawi Publishing Corporation Editorial Jiri Jan Department of Biomedical Engineering Faculty of Electrical Engineering and Communication Brno University of Technology Purkynova 118 CZ 612 00 Brno Czech Republic Email jan@. cz Milan Sonka Department of Electrical and Computer Engineering The University of Iowa 4322 SC Iowa City IA 52242 USA Email milan-sonka@ Ivo Provaznik Department of Biomedical Engineering Faculty of Electrical Engineering and Communication Brno University of Technology Purkynova 118 CZ 612 00 Brno Czech Republic Email ivo@ Modern medical imaging is perhaps the most progressive and also the most appreciated diagnostic tool in health care. Images provided by different imaging modalities correspond well to the background anatomical knowledge and are therefore well accepted and understood by the medical staff. The contribution of modern imaging to the progress of medicine and level of health care is thus widely recognised. While there is admirable progress in designing new or innovated imaging modalities often based on new physical principles the overall success is equally due to the computational part of the imaging. All modern medical imaging modalities use image data in the digital form. Image reconstruction from incomprehensible projection data their processing noise and distortion removal or various display methods matched to particular needs of diagnostics all depend heavily on the computational aspects of medical imaging. The progress in medical imaging is thus in a great part a success of information processing both on the side of algorithm design and implementation as well as utilising large-scale-integration-based hardware. Without being too visible computers are a substantial part of any modern imaging system and the specialised software forms a great deal of the system value the corresponding algorithms being often the well guarded family silver