Improved visualization in virtual colonoscopy using image-based rendering

Authors:
Iwo Serlie;Frans Vos;Rogier van Gelder;Jaap Stoker;Roel Truyen;Frans Gerritsen;Yung Nio;Frits Post
Affiliations:
Department of Applied Physics and Faculty of Information Technology and Systems, Delft University of Technology, Delft, The Netherlands;Department of Applied Physics, Delft University of Technology and Delft and Department of Radiology, Erasmus University Medical Center, Rotterdam, The Netherlands;Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands;Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands;EasyVision Advanced Development, Philips Medical Systems Nederland, Best, The Netherlands;EasyVision Advanced Development, Philips Medical Systems Nederland, Best, The Netherlands;Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands;Faculty of Information Technology and Systems, Delft University of Technology, Delft, The Netherlands
Venue:
EGVISSYM'01 Proceedings of the 3rd Joint Eurographics - IEEE TCVG conference on Visualization
Year:
2001

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Abstract

Virtual colonoscopy (VC) is a patient-friendly alternative for colorectal endoscopic examination. We explore visualization aspects of VC such as surface in view, navigation and communication of a diagnosis. A series of unfolded cubes presents an animated full 360-degree omnidirectional field-of-view to the physician, to facilitate thorough and rapid inspection. For communication between physicians a tool has been designed that uses image-based rendering. Clinical evaluation has shown a reduction in inspection time from 19 minutes to 7 minutes without loss of sensitivity. With current virtual colonoscopy using a 2-sided view only 94% of the surface is available for exploration. In our approach the surface in view is increased to potentially 100%. Thus, the entire colon can be explored with better confidence that no regions are missed.