Statistical shape models of cuboid, navicular and talus bones.
Statistical shape models of cuboid, navicular and talus bones.
复制标题
Cuboid，Navicular和Turus骨骼的统计形状模型。
DOI：
10.1186/s13047-016-0178-x
复制
发表时间：
2017
影响因子：
2.9
通讯作者：
Iskander DR
中科院分区：
文献类型：
--
作者：
Melinska AU;Romaszkiewicz P;Wagel J;Antosik B;Sasiadek M;Iskander DR
其目的是开发统计形状模型的主要人类跗骨，将导致在骰骨，舟骨和距骨的新表示。收集了15个右侧和15个左侧回顾性收集的计算机断层扫描数据集，这些数据集来自年龄从17岁到63岁的男性个体，没有已知的足部病理学。数据来自30个不同的主题。模型建立过程包括图像分割、统一特征位置、数学形状描述和统计形状几何获取。正交分解的骨形状，利用球谐函数提供的手段，为每个骨的唯一参数表示。基于参数球面谐波表示的交叉验证的分类结果显示，对于所有考虑的骨骼，高灵敏度和高特异性大于0.98。在这项工作中创建的骰骨，舟骨和距骨的统计形状模型对应于以前没有考虑过的解剖学上准确的地图集。这项研究表明，在跗骨的表征统计形状建模的临床潜力很高。这些新的模型可以应用于医学图像分析，骨科和生物力学，以提供术前规划，更好的诊断或植入物设计的支持。本文的在线版本（doi：10.1186/s13047-016-0178-x）包含补充材料，可供授权用户使用。
The aim was to develop statistical shape models of the main human tarsal bones that would result in novel representations of cuboid, navicular and talus. Fifteen right and 15 left retrospectively collected computed tomography data sets from male individuals, aged from 17 to 63 years, with no known foot pathology were collected. Data were gathered from 30 different subjects. A process of model building includes image segmentation, unifying feature position, mathematical shape description and obtaining statistical shape geometry. Orthogonal decomposition of bone shapes utilising spherical harmonics was employed providing means for unique parametric representation of each bone. Cross-validated classification results based on parametric spherical harmonics representation showed high sensitivity and high specificity greater than 0.98 for all considered bones. The statistical shape models of cuboid, navicular and talus created in this work correspond to anatomically accurate atlases that have not been previously considered. The study indicates high clinical potential of statistical shape modelling in the characterisation of tarsal bones. Those novel models can be applied in medical image analysis, orthopaedics and biomechanics in order to provide support for preoperative planning, better diagnosis or implant design. The online version of this article (doi:10.1186/s13047-016-0178-x) contains supplementary material, which is available to authorized users.