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MICCAI
2009
Springer

Patient Specific 4D Coronary Models from ECG-gated CTA Data for Intra-operative Dynamic Alignment of CTA with X-ray Images

14 years 4 months ago
Patient Specific 4D Coronary Models from ECG-gated CTA Data for Intra-operative Dynamic Alignment of CTA with X-ray Images
We present an approach to derive patient specific coronary models from ECG-gated CTA data and their application for the alignment of CTA with mono-plane X-ray imaging during interventional cardiology. A 4D (3D+t) deformation model of the coronary arteries is derived by (i) extraction of a 3D coronary model at an appropriate cardiac phase and (ii) non-rigid registration of the CTA images at different ECG phases to obtain a deformation model. The resulting 4D coronary model is aligned with the X-ray data using a novel 2D+t/3D+t registration approach. Model consistency and accuracy is evaluated using manually annotated coronary centerlines at systole and diastole as reference. Improvement of registration robustness by using the 2D+t/3D+t registration is successfully demonstrated by comparison of the actual X-ray cardiac phase with the automatically determined best matching phase in the 4D coronary model.
Coert Metz, Michiel Schaap, Stefan Klein, Lisan
Added 06 Nov 2009
Updated 08 Dec 2009
Type Conference
Year 2009
Where MICCAI
Authors Coert Metz, Michiel Schaap, Stefan Klein, Lisan Neefjes, Ermanno Capuano, Carl Schultz, Robert Jan van Geuns, Patrick W. Serruys, Theo van Walsum, Wiro J. Niessen
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