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arXiv 2604.27654cs.CV

MSR:用于带有标注数据集的颈椎脊柱CT-MRI刚-变形配准的混合场建模

MSR:Hybrid Field Modeling for CT-MRI Rigid-Deformable Registration of the Cervical Spine with an Annotated Dataset

School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.(南方医科大学生物医学工程学院);Guangdong Provincial Key Laboratory of Medical Image Processing, Guangzhou, 510515, China.(广东省医学图像处理重点实验室);Guangdong Province Engineering Laboratory for Medical Imaging(广东省医学影像与诊断技术工程实验室);Information Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.(南方医科大学南华医院信息中心);Division of Spine Surgery, Department of Orthopaedics, Nanfang hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.(南方医科大学南华医院骨科脊柱外科)

Bohai Zhang, Wenjie Chen, Mu Li, Kaixing Long, Xing Shen, Xinqiang Yao, Jincheng Yang, Jianting Chen, Wei Yang, Qianjin Feng, Lei Cao

AI总结:

本文提出MSR框架,通过混合刚-变形配准方法提升颈椎脊柱CT-MRI配准精度,解决复杂结构配准难题。

摘要:

准确的CT-MRI颈椎脊柱配准对术前规划至关重要,因其解剖复杂、变异大且易伤椎动脉和脊髓。然而,颈椎CT-MRI配准研究有限,尤其在刚-变形混合建模方面,缺乏高质量多模态标注数据进一步限制了进展。为应对这些挑战,我们构建并发布了全面标注的CT-MRI数据集R-D-Reg,并提出MSR,一种用于复杂关节结构的刚-变形混合配准框架。具体而言,MSR包括用于独立局部刚性对齐单个椎体的刚性配准模块,以及结合基于Mamba的全局建模和基于Swin Transformer的局部建模的变形配准模块,通过自适应门控结合MSL块。然后将刚性和变形性形变场融合,生成更好的局部解剖一致性保持的混合场。代码和数据集可在https://github.com/ssc1230609-spec/MSR-registration公开获取。

英文摘要:

Accurate CT-MRI registration of the cervical spine is essential for preoperative planning because this region is anatomically complex,highly variable,and vulnerable to injury of the vertebral arteries and spinal cord. However,cervical CT-MRI registration remains underexplored,particularly for rigid-deformable hybrid modeling,and the lack of high-quality annotated multimodal data further limits progress. To address these challenges, we construct and release a comprehensively annotated CT-MRI dataset, R-D-Reg, and propose MSR, a rigid-deformable hybrid registration framework for complex joint structures. Specifically, MSR includes a rigid registration module for independent local rigid alignment of individual vertebrae and a deformable registration module with an MSL block that combines Mamba-based global modeling and Swin Transformer-based local modeling through adaptive gating. The rigid and deformable deformation fields are then fused to generate a hybrid field that better preserves local anatomical consistency. The code and dataset are publicly available at https://github.com/ssc1230609-spec/MSR-registration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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