The aim of computer-aided surgery (CAS) is to advance the utilization of computers in the development of new technologies for medical services. The Asian Conference on Computer Aided Surgery (ACCAS) series provides a forum for academic researchers, clinical scientists, surgeons, and industrial partners to exchange new ideas, techniques, and the latest developments in the field. The ACCAS brings together researchers from all fields related to medical activity visualization, simulation and modeling, virtual reality for CAS, image-guided diagnosis and therapies, CAS for minimally invasive intervention, medical robotics and instrumentation, surgical navigation, clinical application of CAS, telemedicine and telesurgery, and CAS education. The ACCAS is also interested in promoting collaboration among people from different disciplines and different countries in Asia and the world. This volume helps to achieve that goal and is a valuable resource for researchers and clinicians in the field.

The 4th International Workshop on Medical Imaging and Augmented Reality, MIAR 2008, was held at the University of Tokyo, Tokyo, Japan during August 1-2, 2008. The goal of MIAR 2008 was to bring together researchersin medical imaging and intervention to present state-of-the-art developments in this ever-growing research area. Rapid technical advances in medical imaging, including its gr- ing application in drug/gene therapy and invasive/interventional procedures, have attracted signi?cant interest in the close integration of research in the life sciences, medicine, physical sciences, and engineering. Current research is also motivated by the fact that medical imaging is moving increasingly from a p- marily diagnostic modality towards a therapeutic and interventional aid, driven by the streamlining of diagnostic and therapeutic processes for human diseases by means of imaging modalities and robotic-assisted surgery. The impact of MIAR on these ?elds increases each year, and the quality of submitted papers this yearwas veryimpressive. We received90 full submissions, which were subsequently reviewed by up to ?ve reviewers. Reviewer a?liations were carefully checked against author a?liations to avoid con?icts of interest, and the review process was run as a double-blind process. A special procedure was also devised for papers from the universities of the organizers, upholding a double-blind review process for these papers. The MIAR 2008 Program C- mittee ?nally accepted 44 full papers. For this workshop, we also included three papers from the invited speakers coveringregistration and segmentation, virtual reality, and perceptual docking for robotic control.

Together with the companion volume LNCS 2488 this book constitutes the refereed proceedings of the 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002, held in Tokyo, Japan, in September 2002.The 184 revised full papers presented were carefully reviewed and selected from 321 submissions. The two-volume proceedings offers main topical sections on medical robotics and endoscopic devices; validation; brain tumor, cortex, vascular, and imaging and analysis; segmentation; cardiac applications; computer-assisted diagnosis; tubular structures; interventions; simulation; modelling; statistical shape modelling; image registration; visualization; and novel imaging techniques.

Together with the companion volume LNCS 2489 this book constitutes the refereed proceedings of the 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002, held in Tokyo, Japan, in September 2002.The 184 revised full papers presented were carefully reviewed and selected from 321 submissions. The two-volume proceedings offers main topical sections on medical robotics and endoscopic devices; validation; brain tumor, cortex, vascular, and imaging and analysis; segmentation; cardiac applications; computer-assisted diagnosis; tubular structures; interventions; simulation; modelling; statistical shape modelling; image registration; visualization; and novel imaging techniques.