Real-time visualization of coronary interventions using VRML

Steven C. Mitchell*, Andreas Wahle, Clemens von Birgelen, Raimund Erbel, Milan Sonka (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalConference articleAcademicpeer-review

3 Citations (Scopus)


Medical visualization is a rapidly developing field with many application areas spanning from visualization of anatomy to surgery planning, to understanding of disease processes. With increasing computer speed, medical visualization is becoming more real-time. In this paper, we present a novel application of real-time three-dimensional visualization of coronary arteries during catheter interventions that combines image information from two complementary sources: biplane X-ray contrast angiography and intravascular ultrasound (IVUS). After identification of the three-dimensional characteristics of the intravascular ultrasound pullback sequence, vessel geometry and vessel wall images are combined into a single visualization using semi-automated analysis of a corresponding pair of biplane angiography images. Visualization data are represented using the Virtual Reality Modeling Language (VRML), the code for which is automatically generated by our angiography/IVUS image processing and analysis software system. Selection of the VRML approach facilitates real-time 3-D visualization with an ability of over-the-network image processing and dissemination of results. The visualization specifics are easily modifiable in near real time to consider the immediate requirements of the end-user, the cardiologist who performs the coronary intervention.

Original languageEnglish
Pages (from-to)279-287
Number of pages9
JournalProceedings of SPIE - the international society for optical engineering
Publication statusPublished - 1 Jan 1999
Externally publishedYes
Event1999 Medical Imaging - Image Processing - San Diego, United States
Duration: 20 Feb 199926 Feb 1999


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