Sung-Hoon Han, Jisup Lim, Jun-Sik Kim, Jin-Hyoung Cho, Mihee Hong, Minji Kim, Su-Jung Kim, Yoon-Ji Kim, Young Ho Kim, Sung-Hoon Lim, Sang Jin Sung, Kyung-Hwa Kang, Seung-Hak Baek, Sung-Kwon Choi, Namkug Kim
OBJECTIVE: To quantify the effects of midline-related landmark identification on midline deviation measurements in posteroanterior (PA) cephalograms using a cascaded convolutional neural network (CNN). METHODS: A total of 2,903 PA cephalogram images obtained from 9 university hospitals were divided into training, internal validation, and test sets (n = 2,150, 376, and 377). As the gold standard, 2 orthodontic professors marked the bilateral landmarks, including the frontozygomatic suture point and latero-orbitale (LO), and the midline landmarks, including the crista galli, anterior nasal spine (ANS), upper dental midpoint (UDM), lower dental midpoint (LDM), and menton (Me)...
December 11, 2023: Korean Journal of Orthodontics