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Proceedings Paper

Spatiotemporal multiscale vessel enhancement for coronary angiograms
Author(s): Til Aach; Claudia Mayntz; Peter M. J. Rongen; Georg Schmitz; Herman Stegehuis
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Paper Abstract

In coronary angiography, coronaries are imaged filled by a contrast medium which is injected through a catheter. To increase vessel visibility relative to surrounding structures, a background-less, subtraction-like appearance of the angiograms may be desired. This paper describes algorithms to increase vessel contrast and to attenuate background. Due to the strong motion in coronary angiograms, direct subtraction of a mask image acquired initially without contrast agent cannot be applied. We therefore distinguish vessels from background by their contrast, their size and their motion. These criteria are evaluated on a multiscale structure. Enhancement is then applied at locations which are likely to contain vessels. To avoid unacceptable noise boosting, we integrate a multiscale noise reduction filter into this concept. Both performance and computational simplicity make our algorithms attractive.

Paper Details

Date Published: 9 May 2002
PDF: 12 pages
Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); doi: 10.1117/12.467056
Show Author Affiliations
Til Aach, Medical Univ. of Luebeck (Germany)
Claudia Mayntz, Medical Univ. of Luebeck (Germany)
Peter M. J. Rongen, Philips Medical Systems (Netherlands)
Georg Schmitz, Philips Research Labs. (Germany)
Herman Stegehuis, Philips Medical Systems (Netherlands)

Published in SPIE Proceedings Vol. 4684:
Medical Imaging 2002: Image Processing
Milan Sonka; J. Michael Fitzpatrick, Editor(s)

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