J-Vision/Diag is a Java-based viewing and diagnostic workstation for a Tiani Medgraph PACS (Picture Archiving and Communication System). The software is used by radiologists to view and diagnose images from different modalities like computer tomographs, magnetic resonance tomographs and ultrasonic devices. In addition to basic two-dimensional viewing features, e.g.; zooming, filtering, and windowing, the software also interprets stacks of images as volumes and displays arbitrary cuts through the volume (MPR = multi-planar reconstruction), maximum intensity projections (MIP) and surface renderings. Efficient work flow is achieved by a user interface which makes extensive use of so called hot-regions (clickable areas within the image display area which directly invoke frequently used operations on the data). Figure 7.1 shows a screenshot of a typical work bench with simultaneous views of a data set as a set of slices (top left), using MPR (top right), the surface rendering algorithm (bottom left) and various variants of MIP (bottom right).
![\includegraphics[width=.87\linewidth]{Figures/jvision.ps}](img279.png)