Delayed diagnosis of syndesmosis instability can lead to significant morbidity and accelerated arthritic change in the ankle joint. Weight-bearing computed tomography (WBCT) has shown promising potential for early and reliable detection of isolated syndesmotic instability using 3D volumetric measurements. While these measurements have been reported to be highly accurate, they are also experience-dependent, time-consuming, and need a particular 3D measurement software tool that leads the clinicians to still show more interest in the conventional diagnostic methods for syndesmotic instability. The purpose of this study was to increase accuracy, accelerate analysis time, and reduce inter-observer bias by automating 3D volume assessment of syndesmosis anatomy using WBCT scans. We conducted a retrospective study using previously collected WBCT scans of patients with unilateral syndesmotic instability. 144 bilateral ankle WBCT scans were evaluated (48 unstable, 96 control). We developed three deep learning (DL) models for analyzing WBCT scans to recognize syndesmosis instability. These three models included two state-of-the-art models (Model 1 - 3D convolutional neural network [CNN], and Model 2 - CNN with long short-term memory [LSTM]), and a new model (Model 3 - differential CNN LSTM) that we introduced in this study. Model 1 failed to analyze the WBCT scans (F1-score = 0). Model 2 only misclassified two cases (F1-score = 0.80). Model 3 outperformed Model 2 and achieved a nearly perfect performance, misclassifying only one case (F1-score = 0.91) in the control group as unstable while being faster than Model 2.
翻译:对合成疾病不稳定的延迟诊断可能导致显著的发病率和加速脚踝关节关节变化的加速性变化。 带有重力的计算断层摄影(WBCT)显示,利用3D体积测量早期和可靠地检测孤立合成疾病不稳定性有潜力。 虽然这些测量报告高度准确,但它们也依赖经验,耗时,需要3D测量软件工具,使临床医生仍然对常规诊断方法表现出更大的兴趣,以发现合成疾病不稳定性。本研究的目的是提高精确度,加快分析时间,并通过使用3D体积扫描对2D体积对单体系合成疾病解剖进行自动评估,从而减少观察者之间的偏差。我们利用以前收集的对单体积不稳定病人的WBCT扫描进行了回顾性研究。 144个双骨架快速扫描(48个不稳定,96个控制)。我们开发了三个深度学习(DLL)模型,用于分析WBCT扫描以识别合成疾病不稳定性。这三种模型包括两种状态-3DRIS的体积体积量评估,一个模型为1-模型,一个模型=3MISLM 3-N-CMLS-CMLS-M 30的模型,一个模型为1,一个模型为模型,一个模型为模型为1,一个模型为模型为模型为模型。