将前列腺切除标本三维重建,提升病理诊断透明度与多模态研究效率。
Volumetric Reconstruction of Prostatectomy Specimens from Histology
- 基于数字切片协议与虚拟切片匹配,实现标本3D重建
- 通过注册与凸包/高斯点云等方法完成三维结构还原
- 适合病理、影像、科研跨学科协作,易融入临床流程
前列腺癌手术常需切除整个器官,其病理标本包含重要治疗信息。现有诊断过程生成大量复杂数据难以在报告中体现,但对多学科协作极具价值。三维组织重建可增强空间可视化,并支持多模态融合。当前方法多依赖人工操作,难集成至临床流程。本文提出3D-SLIVER,一个开源的3DSlicer插件,提供简化解决方案。该系统包含四个模块:切片协议数字化、基于协议的任意3D模型虚拟切片、利用Coherent Point Drift算法将真实切片与虚拟切片配准、以及基于凸包、高斯点喷和线性拉伸的3D重构。文中展示三个实际应用场景:低门槛整合至病理流程;回顾性评估PI-RADS预测准确性;统计分析形态学模式的三维分布。3D-SLIVER有助于提升多学科沟通效率,设计简洁,可灵活适配多种工作流。虽聚焦前列腺癌诊疗,未来可拓展至其他肿瘤、教育与科研领域。
原文摘要 · Abstract (English)
Surgical treatment for prostate cancer often involves organ removal, i.e., prostatectomy. Pathology reports on these specimens convey treatment-relevant information. Beyond these reports, the diagnostic process generates extensive and complex information that is difficult to represent in reports, although it is of significant interest to the other medical specialties involved. 3D tissue reconstruction would allow for better spatial visualization, as well as combinations with other imaging modalities. Existing approaches in this area have proven labor-intensive and challenging to integrate into clinical workflows. 3D-SLIVER provides a simplified solution, implemented as an open-source 3DSlicer extension. We outline three specific real-world scenarios to illustrate its potential to improve transparency in diagnostic workflows and contribute to multi-modal research endeavors. Implementing the 3D reconstruction process involved four sub-modules of 3D-SLIVER: digitization of slicing protocol, virtual slicing of arbitrary 3D models based on that protocol, registration of slides with virtual slices using the Coherent Point Drift algorithm, and 3D reconstruction of registered information using convex hulls, Gaussian splatter and linear extrusion. Three use cases to employ 3D-SLIVER are presented: a low-effort approach to pathology workflow integration and two research-related use cases illustrating how to perform retrospective evaluations of PI-RADS predictions and statistically model 3D distributions of morphological patterns. 3D-SLIVER allows for improved interdisciplinary communication among specialties. It is designed for simplicity in application, allowing for flexible integration into various workflows and use cases. Here we focused on the clinical care of prostate cancer patients, but future possibilities are extensive with other neoplasms and in education and research.
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