Resolving the Ambiguity of Complete-to-Partial Point Cloud Registration for Image-Guided Liver Surgery with Patches-to-Partial Matching

• URL: http://arxiv.org/abs/2412.19328v1
• Date: Thu, 26 Dec 2024 18:58:29 GMT
• Title: Resolving the Ambiguity of Complete-to-Partial Point Cloud Registration for Image-Guided Liver Surgery with Patches-to-Partial Matching
• Authors: Zixin Yang, Jon S. Heiselman, Cheng Han, Kelly Merrell, Richard Simon, Cristian. A. Linte,
• Abstract summary: In image-guided liver surgery, the initial rigid alignment between preoperative and intraoperative data is crucial. We propose a patches-to-partial matching strategy as a plug-and-play module to resolve the ambiguity. It has proven effective and efficient in improving registration performance for cases with limited intraoperative visibility.
• Score: 3.6999273555552548
• License:
• Abstract: In image-guided liver surgery, the initial rigid alignment between preoperative and intraoperative data, often represented as point clouds, is crucial for providing sub-surface information from preoperative CT/MRI images to the surgeon during the procedure. Currently, this alignment is typically performed using semi-automatic methods, which, while effective to some extent, are prone to errors that demand manual correction. Point cloud correspondence-based registration methods are promising to serve as a fully automatic solution. However, they may struggle in scenarios with limited intraoperative surface visibility, a common challenge in liver surgery, particularly in laparoscopic procedures, which we refer to as complete-to-partial ambiguity. We first illustrate this ambiguity by evaluating the performance of state-of-the-art learning-based point cloud registration methods on our carefully constructed in silico and in vitro datasets. Then, we propose a patches-to-partial matching strategy as a plug-and-play module to resolve the ambiguity, which can be seamlessly integrated into learning-based registration methods without disrupting their end-to-end structure. It has proven effective and efficient in improving registration performance for cases with limited intraoperative visibility. The constructed benchmark and the proposed module establish a solid foundation for advancing applications of point cloud correspondence-based registration methods in image-guided liver surgery.

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