A system for accurate interactive 3-D display of cardiac electrical activity

B. H. Branham*, X. Bi, James Lewis Cox

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


An optimal electrophysiologic mapping system for map- directed arrhythmia surgery should allow rapid and accurate interpretation of cardiac activation sequences. It should display activation or potential distribution data on an anatomically accurate 3-D model of the heart and allow fast, interactive control of viewing characteristics, such as rotation and which cardiac surfaces to display. The system described here employs two programs, GETP1C3 and MAP3, and runs on a Silicon Graphics, Inc. 4D/320GTX. It uses 3-D models of epicardial (epi) and endocardial (endo) surfaces created with the GETPIC3 program from a sequence of 2- D images of a heart. The individual surfaces are triangulated and may be smoothed using a spline function. MAP3 displays activation times either as static isochronous maps or as dynamic time-since-last-activation maps. In the case of dynamic activation maps, surface color denotes the time since that area activated. Potential distribution data may also be displayed dynamically. The program uses a mouse to control the real-time rotation of the model, and any surface (endo or epi) can be hidden interactively for better viewing of the data.

Original languageEnglish (US)
Title of host publicationProceedings - Computers in Cardiology, CIC 1992
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)0818635525, 9780818635526
StatePublished - Jan 1 1992
Event1992 IEEE Conference on Computers in Cardiology, CIC 1992 - Durham, United States
Duration: Oct 11 1992Oct 14 1992

Publication series

NameProceedings - Computers in Cardiology, CIC 1992


Conference1992 IEEE Conference on Computers in Cardiology, CIC 1992
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering


Dive into the research topics of 'A system for accurate interactive 3-D display of cardiac electrical activity'. Together they form a unique fingerprint.

Cite this