Model based LV-reconstruction in bi-plane x-ray angiography

Werner Backfrieder; Martin Carpella; Roland Swoboda; Clemens Steinwender M.D.; Christian Gabriel M.D.; Franz Leisch M.D.

doi:10.1117/12.594849

29 April 2005 Model based LV-reconstruction in bi-plane x-ray angiography

Werner Backfrieder, Martin Carpella, Roland Swoboda, Clemens Steinwender M.D., Christian Gabriel M.D., Franz Leisch M.D.

Author Affiliations +

Proceedings Volume 5747, Medical Imaging 2005: Image Processing; (2005) https://doi.org/10.1117/12.594849
Event: Medical Imaging, 2005, San Diego, California, United States

Abstract

Interventional x-ray angiography is state of the art in diagnosis and therapy of severe diseases of the cardiovascular system. Diagnosis is based on contrast enhanced dynamic projection images of the left ventricle. A new model based algorithm for three dimensional reconstruction of the left ventricle from bi-planar angiograms was developed. Parametric super ellipses are deformed until their projection profiles optimally fit measured ventricular projections. Deformation is controlled by a simplex optimization procedure. A resulting optimized parameter set builds the initial guess for neighboring slices. A three dimensional surface model of the ventricle is built from stacked contours. The accuracy of the algorithm has been tested with mathematical phantom data and clinical data. Results show conformance with provided projection data and high convergence speed makes the algorithm useful for clinical application. Fully three dimensional reconstruction of the left ventricle has a high potential for improvements of clinical findings in interventional cardiology.

Citation Download Citation

Werner Backfrieder, Martin Carpella, Roland Swoboda, Clemens Steinwender M.D., Christian Gabriel M.D., and Franz Leisch M.D. "Model based LV-reconstruction in bi-plane x-ray angiography", Proc. SPIE 5747, Medical Imaging 2005: Image Processing, (29 April 2005); https://doi.org/10.1117/12.594849

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