journal article·2020-03-20Open access

Deep Convolutional Neural Networks Based Analysis of Cephalometric Radiographs for Differential Diagnosis of Orthognathic Surgery Indications

Ki-Sun Lee, Jae-Jun Ryu, Hyon Seok Jang, Dong-Yul Lee, Seok-Ki Jung

Applied Sciences· Volume 10· Issue 6

Abstract

The aim of this study was to evaluate the deep convolutional neural networks (DCNNs) based on analysis of cephalometric radiographs for the differential diagnosis of the indications of orthognathic surgery. Among the DCNNs, Modified-Alexnet, MobileNet, and Resnet50 were used, and the accuracy of the models was evaluated by performing 4-fold cross validation. Additionally, gradient-weighted class activation mapping (Grad-CAM) was used to perform visualized interpretation to determine which region affected the DCNNs’ class classification. The prediction accuracy of the models was 96.4% for Modified-Alexnet, 95.4% for MobileNet, and 95.6% for Resnet50. According to the Grad-CAM analysis, the most influential regions for the DCNNs’ class classification were the maxillary and mandibular teeth, mandible, and mandibular symphysis. This study suggests that DCNNs-based analysis of cephalometric radiograph images can be successfully applied for differential diagnosis of the indications of orthognathic surgery.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Dental Radiography and Imaging · Medical Imaging and Analysis · Artificial Intelligence in Healthcare and Education

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul 03080, Korea

Department of Clinical Dentistry, College of Medicine, Korea University, Seoul 02841, Korea

Department of Prosthodontics, Korea University Ansan Hospital, Gyung-gi do 15355, Korea

Department of Prosthodontics, Korea University Anam Hospital, Seoul 02841, Korea

Department of Oral and Maxillofacial Surgery, Korea University Ansan Hospital, Gyung-gi do 15355, Korea

Department of Orthodontics, Korea University Guro Hospital, Seoul 08308, Korea

Department of Orthodontics, Korea University Ansan Hospital, Gyung-gi do 15355, Korea

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