The primary objectives of the "Peripheral CT" project of CT Imaging GmbH are baseline studies and predevelopment for compact, flexible CT systems. Such systems permit, for example, examinations of standing, seated and, where necessary, recumbent patients. This innovative approach would enable examinations of joints even under load. In addition, image reconstruction techniques are being developed which, for the first time, are to allow effective correction of image artifacts through model-based iterative methods. These artifacts currently make accurate diagnosis, e.g.