29 March 2016 Nonrigid 2D registration of fluoroscopic coronary artery image sequence with layered motion
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Abstract
We present a new method for nonrigid registration of coronary artery models with layered motion information. 2D nonrigid registration method is proposed that brings layered motion information into correspondence with fluoroscopic angiograms. The registered model is overlaid on top of interventional angiograms to provide surgical assistance during image-guided chronic total occlusion procedures. The proposed methodology is divided into two parts: layered structures alignments and local nonrigid registration. In the first part, inpainting method is used to estimate a layered rigid transformation that aligns layered motion information. In the second part, a nonrigid registration method is implemented and used to compensate for any local shape discrepancy. Experimental evaluation conducted on a set of 7 fluoroscopic angiograms results in a reduced target registration error, which showed the effectiveness of the proposed method over single layered approach.
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Taewoo Park, Taewoo Park, Hoyup Jung, Hoyup Jung, Il Dong Yun, Il Dong Yun, "Nonrigid 2D registration of fluoroscopic coronary artery image sequence with layered motion", Proc. SPIE 9788, Medical Imaging 2016: Biomedical Applications in Molecular, Structural, and Functional Imaging, 97882G (29 March 2016); doi: 10.1117/12.2218565; https://doi.org/10.1117/12.2218565
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