Special Section: Selection of Papers From IPMJ 2003.

This article presents information regarding a workshop organized by the Information Processing in Medical Imaging (IPMI), in 2003. IPMI occupies an important position in the scientific calendar. Every two years it brings together leading researchers in medical image formation, analysis and interpretation, for an international workshop that allows extensive, in-depth discussion of new ideas. IPMI 2003 was held over five days in July 2003 at St Martin' s College, Ambleside-in the heart of the English Lake District. Full papers were invited on any aspect of information processing in medical imaging, with particular emphasis on exploring generic mathematical or computational principles.