Complex surgical interventions often demand for a careful pre-operative planning. As of today, surgeons still have to manually segment the anatomical structures of interest for planning the intervention. This is a tedious and error prone task. The real-time volume rendering technique presented in this talk has the potential the completely replace the segmentation and thus simplifying surgical planning substantially.We'll present the HTC Vive-based virtual reality room that displays medical data using our fast proprietary volume renderer running on a single GPU. Besides implementation aspects such as real-time shadow casting, we'll show possible applications of such a VR room in the medical field and beyond. We'll give an outlook on how this technology could change the future of medical data visualization. Possible future applications of this technology also include collaborative data visualization with for example experts sitting hundreds of miles away or even in space.