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17 February 2012Intensity-based 3D/2D registration for percutaneous
intervention of major aorto-pulmonary collateral arteries
Percutaneous cardiac interventions rely mainly on the experience of the cardiologist to safely navigate inside
soft tissues vessels under X-ray angiography guidance. Additional navigation guidance tool might contribute to
improve reliability and safety of percutaneous procedures. This study focus on major aorta-pulmonary collateral
arteries (MAPCAs) which are pediatric structures. We present a fully automatic intensity-based 3D/2D
registration method that accurately maps pre-operatively acquired 3D tomographic vascular data of a newborn
patient over intra-operatively acquired angiograms. The tomographic dataset 3D pose is evaluated by comparing
the angiograms with simulated X-ray projections, computed from the pre-operative dataset with a proposed
splatting-based projection technique. The rigid 3D pose is updated via a transformation matrix usually defined
in respect of the C-Arm acquisition system reference frame, but it can also be defined in respect of the projection
plane local reference frame. The optimization of the transformation is driven by two algorithms. First the hill
climbing local search and secondly a proposed variant, the dense hill climbing. The latter makes the search space
denser by considering the combinations of the registration parameters instead of neighboring solutions only.
Although this study focused on the registration of pediatric structures, the same procedure could be applied for
any cardiovascular structures involving CT-scan and X-ray angiography. Our preliminary results are promising
that an accurate (3D TRE 0.265 ± 0.647mm) and robust (99% success rate) bi-planes registration of the aorta
and MAPCAs from a initial displacement up to 20mm and 20° can be obtained within a reasonable amount of
time (13.7 seconds).
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Julien Couet, David Rivest-Henault, Joaquim Miro, Chantal Lapierre, Luc Duong, Mohamed Cheriet, "Intensity-based 3D/2D registration for percutaneous intervention of major aorto-pulmonary collateral arteries," Proc. SPIE 8316, Medical Imaging 2012: Image-Guided Procedures, Robotic Interventions, and Modeling, 831629 (17 February 2012); https://doi.org/10.1117/12.911468