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High‐quality 3‐D coronary artery imaging on an interventional C‐arm x‐ray system
Author(s) -
Hansis Eberhard,
Carroll John D.,
Schäfer Dirk,
Dössel Olaf,
Grass Michael
Publication year - 2010
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.3352869
Subject(s) - medicine , radiology , medical imaging , cardiac imaging , coronary artery disease , image quality , nuclear medicine , medical physics , computer science , computer vision , image (mathematics)
Purpose: Three‐dimensional (3‐D) reconstruction of the coronary arteries during a cardiac catheter‐based intervention can be performed from a C‐arm based rotational x‐ray angiography sequence. It can support the diagnosis of coronary artery disease, treatment planning, and intervention guidance. 3‐D reconstruction also enables quantitative vessel analysis, including vessel dynamics from a time‐series of reconstructions. Methods: The strong angular undersampling and motion effects present in gated cardiac reconstruction necessitate the development of special reconstruction methods. This contribution presents a fully automatic method for creating high‐quality coronary artery reconstructions. It employs a sparseness‐prior based iterative reconstruction technique in combination with projection‐based motion compensation. Results: The method is tested on a dynamic software phantom, assessing reconstruction accuracy with respect to vessel radii and attenuation coefficients. Reconstructions from clinical cases are presented, displaying high contrast, sharpness, and level of detail. Conclusions: The presented method enables high‐quality 3‐D coronary artery imaging on an interventional C‐arm system.