The use of deep learning enables high diagnostic accuracy in detecting syndesmotic instability on weight-bearing CT scanning

• URL: http://arxiv.org/abs/2207.03568v1
• Date: Thu, 7 Jul 2022 20:49:37 GMT
• Title: The use of deep learning enables high diagnostic accuracy in detecting syndesmotic instability on weight-bearing CT scanning
• Authors: Alireza Borjali, Soheil Ashkani-Esfahani, Rohan Bhimani, Daniel Guss, Orhun K. Muratoglu, Christopher W. DiGiovanni, Kartik Mangudi Varadarajan, Bart Lubberts
• Abstract summary: Delayed diagnosis of syndesmotic instability can lead to significant morbidity and accelerated change in the ankle joint. Weight-bearing computed tomography (WBCT) has shown promising potential for early and reliable detection of isolated syndesmotic instability. We developed three deep learning (DL) models for analyzing WBCT scans to recognize syndesmosis instability.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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