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个性化腰椎脊椎建模用于对异常脊椎病的动态评估

Chengyin Wang, Jianfeng Li, Shuo Wang

IEEE journal of biomedical and health informatics

|November 19, 2025

概括

这项研究引入了一个个性化的动态数字人 (i-DDH) 来评估异常学脊椎病 (IS) 患者. i-DDH准确地捕捉动态脊柱姿势,改善IS的临床评估和手术规划.

科学领域:

医疗成像医学成像
生物机械工程生物机械工程
计算机视觉计算机视觉

背景情况:

形脊柱病 (IS) 评估传统上使用静态成像.
动态评估为脊柱形提供了优越的时空洞察力.
腰椎表现出显著的变化,需要个性化建模以进行动态分析.

研究的目的:

开发一个个性化的腰椎模型 (PLVM) 来模拟IS患者的腰椎运动.
将PLVM集成到一个动态数字人 (DDH) 框架中,创建一个个性化的DDH (i-DDH).
为了能够准确地动态评估IS患者的脊柱姿势.

主要方法:

使用骨原始生成,神经辐射场 (NeRF) 和3D高斯点击构建DDH.
开发一个PLVM生成方法来模拟腰椎运动在不同的负载和姿势下.
将骨原始和PLVM合并,创建用于动态评估的i-DDH.

主要成果:

i-DDH在与IS患者的多姿势放射图进行验证时取得了很高的准确性.
与X线图相比,其平均角度误差为0.96°,最大误差为3.6°.
成功捕捉动态脊柱姿势,克服静态成像和运动捕捉系统的局限性.

结论:

拟议的i-DDH框架为IS患者提供准确的动态脊柱评估.
它克服了软组织人工物和健康人体培训的局限性,用于3D变形生成.
为手术前规划和IS的动态临床评估提供了重要的临床价值.

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