Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images

This study was designed to develop and verify a fully automated cephalometry landmark identification system, based on multi-stage convolutional neural networks (CNNs) architecture, using a combination dataset. In this research, we trained and tested multi-stage CNNs with 430 lateral and 430 MIP late...

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Main Authors: Min-Jung Kim, Yi Liu, Song Hee Oh, Hyo-Won Ahn, Seong-Hun Kim, Gerald Nelson
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/2/505
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author Min-Jung Kim
Yi Liu
Song Hee Oh
Hyo-Won Ahn
Seong-Hun Kim
Gerald Nelson
author_facet Min-Jung Kim
Yi Liu
Song Hee Oh
Hyo-Won Ahn
Seong-Hun Kim
Gerald Nelson
author_sort Min-Jung Kim
collection DOAJ
description This study was designed to develop and verify a fully automated cephalometry landmark identification system, based on multi-stage convolutional neural networks (CNNs) architecture, using a combination dataset. In this research, we trained and tested multi-stage CNNs with 430 lateral and 430 MIP lateral cephalograms synthesized by cone-beam computed tomography (CBCT) to make a combination dataset. Fifteen landmarks were manually and respectively identified by experienced examiner, at the preprocessing phase. The intra-examiner reliability was high (ICC = 0.99) in manual identification. The results of prediction of the system for average mean radial error (MRE) and standard deviation (SD) were 1.03 mm and 1.29 mm, respectively. In conclusion, different types of image data might be the one of factors that affect the prediction accuracy of a fully-automated landmark identification system, based on multi-stage CNNs.
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spelling doaj.art-fb12e5d205464f77a6b56fedd5379c8e2023-12-03T12:59:18ZengMDPI AGSensors1424-82202021-01-0121250510.3390/s21020505Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination ImagesMin-Jung Kim0Yi Liu1Song Hee Oh2Hyo-Won Ahn3Seong-Hun Kim4Gerald Nelson5Department of Orthodontics, Graduate School, Kyung Hee University, Seoul 02447, KoreaDepartment of Orthodontics, Peking University School of Stomatology, Beijing 100081, ChinaDepartment of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University, Seoul 02447, KoreaDepartment of Orthodontics, Graduate School, Kyung Hee University, Seoul 02447, KoreaDepartment of Orthodontics, Graduate School, Kyung Hee University, Seoul 02447, KoreaDivision of Orthodontics, Department of Orofacial Science, University of California San Francisco, San Francisco, CA 94143, USAThis study was designed to develop and verify a fully automated cephalometry landmark identification system, based on multi-stage convolutional neural networks (CNNs) architecture, using a combination dataset. In this research, we trained and tested multi-stage CNNs with 430 lateral and 430 MIP lateral cephalograms synthesized by cone-beam computed tomography (CBCT) to make a combination dataset. Fifteen landmarks were manually and respectively identified by experienced examiner, at the preprocessing phase. The intra-examiner reliability was high (ICC = 0.99) in manual identification. The results of prediction of the system for average mean radial error (MRE) and standard deviation (SD) were 1.03 mm and 1.29 mm, respectively. In conclusion, different types of image data might be the one of factors that affect the prediction accuracy of a fully-automated landmark identification system, based on multi-stage CNNs.https://www.mdpi.com/1424-8220/21/2/505artificial intelligenceconvolutional neural networksautomatic identificationlateral cephalogramscone-beam computed tomographymaximum intensity projection (MIP)
spellingShingle Min-Jung Kim
Yi Liu
Song Hee Oh
Hyo-Won Ahn
Seong-Hun Kim
Gerald Nelson
Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
Sensors
artificial intelligence
convolutional neural networks
automatic identification
lateral cephalograms
cone-beam computed tomography
maximum intensity projection (MIP)
title Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
title_full Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
title_fullStr Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
title_full_unstemmed Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
title_short Automatic Cephalometric Landmark Identification System Based on the Multi-Stage Convolutional Neural Networks with CBCT Combination Images
title_sort automatic cephalometric landmark identification system based on the multi stage convolutional neural networks with cbct combination images
topic artificial intelligence
convolutional neural networks
automatic identification
lateral cephalograms
cone-beam computed tomography
maximum intensity projection (MIP)
url https://www.mdpi.com/1424-8220/21/2/505
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