Conference proceeding
Automated calculation of the axial orientation of intravascular ultrasound images by fusion with biplane angiography
Proceedings of SPIE, Vol.3661(1), pp.1094-1104
Medical Imaging 1999: Image Processing
05/21/1999
DOI: 10.1117/12.348504
Abstract
This paper presents an approach for fusion of the two major cardiovascular imaging modalities, angiography and intravascular ultrasound (IVUS). While the path of the IVUS catheter, which follows the vessel curvature during pullback, is reconstructed from biplane angiograms, cross-sectional information about the vessel is derived from IVUS. However, after mapping of the IVUS frames into their correct 3-D locations along the catheter path, their orientations remain ambiguous. We determine the relative catheter twisting analytically, followed by a statistical method for finding the absolute orientation from the out-of-center position of the IVUS catheter. Our results as obtained from studies with cadaveric pig hearts and from three patients undergoing routine coronary intervention showed a good match of the absolute orientation by the algorithm. In all tested cases, the method determined the visually correct orientations of the IVUS frames. Local distortions were reliably identified and discarded.
Details
- Title: Subtitle
- Automated calculation of the axial orientation of intravascular ultrasound images by fusion with biplane angiography
- Creators
- Andreas Wahle - Univ. of Iowa (USA)Guido P. M Prause - Univ. of Iowa and Univ. of Bremen (Germany)Clemens von Birgelen - Univ. Hospital Essen (Germany)Raimund Erbel - Univ. Hospital Essen (Germany)Milan Sonka - Univ. of Iowa (USA)
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.3661(1), pp.1094-1104
- Conference
- Medical Imaging 1999: Image Processing
- DOI
- 10.1117/12.348504
- ISSN
- 0277-786X
- Language
- English
- Date published
- 05/21/1999
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Electrical and Computer Engineering; Radiation Oncology; Injury Prevention Research Center; Ophthalmology and Visual Sciences
- Record Identifier
- 9984047792802771
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