Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence

Abstract Background The purpose of this study was to evaluate the accuracy of automatic cephalometric landmark localization and measurements using cephalometric analysis via artificial intelligence (AI) compared with computer-assisted manual analysis. Methods Reconstructed lateral cephalograms (RLCs...

Full description

Bibliographic Details
Main Authors: Han Bao, Kejia Zhang, Chenhao Yu, Hu Li, Dan Cao, Huazhong Shu, Luwei Liu, Bin Yan
Format: Article
Language:English
Published: BMC 2023-04-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-023-02881-8
_version_ 1797853520804708352
author Han Bao
Kejia Zhang
Chenhao Yu
Hu Li
Dan Cao
Huazhong Shu
Luwei Liu
Bin Yan
author_facet Han Bao
Kejia Zhang
Chenhao Yu
Hu Li
Dan Cao
Huazhong Shu
Luwei Liu
Bin Yan
author_sort Han Bao
collection DOAJ
description Abstract Background The purpose of this study was to evaluate the accuracy of automatic cephalometric landmark localization and measurements using cephalometric analysis via artificial intelligence (AI) compared with computer-assisted manual analysis. Methods Reconstructed lateral cephalograms (RLCs) from cone-beam computed tomography (CBCT) in 85 patients were selected. Computer-assisted manual analysis (Dolphin Imaging 11.9) and AI automatic analysis (Planmeca Romexis 6.2) were used to locate 19 landmarks and obtain 23 measurements. Mean radial error (MRE) and successful detection rate (SDR) values were calculated to assess the accuracy of automatic landmark digitization. Paired t tests and Bland‒Altman plots were used to compare the differences and consistencies in cephalometric measurements between manual and automatic analysis programs. Results The MRE for 19 cephalometric landmarks was 2.07 ± 1.35 mm with the automatic program. The average SDR within 1 mm, 2 mm, 2.5 mm, 3 and 4 mm were 18.82%, 58.58%, 71.70%, 82.04% and 91.39%, respectively. Soft tissue landmarks (1.54 ± 0.85 mm) had the most consistency, while dental landmarks (2.37 ± 1.55 mm) had the most variation. In total, 15 out of 23 measurements were within the clinically acceptable level of accuracy, 2 mm or 2°. The rates of consistency within the 95% limits of agreement were all above 90% for all measurement parameters. Conclusion Automatic analysis software collects cephalometric measurements almost effectively enough to be acceptable in clinical work. Nevertheless, automatic cephalometry is not capable of completely replacing manual tracing. Additional manual supervision and adjustment for automatic programs can increase accuracy and efficiency.
first_indexed 2024-04-09T19:51:58Z
format Article
id doaj.art-72fbbb156bee4ee4a3c98241c0643a9e
institution Directory Open Access Journal
issn 1472-6831
language English
last_indexed 2024-04-09T19:51:58Z
publishDate 2023-04-01
publisher BMC
record_format Article
series BMC Oral Health
spelling doaj.art-72fbbb156bee4ee4a3c98241c0643a9e2023-04-03T05:42:45ZengBMCBMC Oral Health1472-68312023-04-0123111010.1186/s12903-023-02881-8Evaluating the accuracy of automated cephalometric analysis based on artificial intelligenceHan Bao0Kejia Zhang1Chenhao Yu2Hu Li3Dan Cao4Huazhong Shu5Luwei Liu6Bin Yan7Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityDepartment of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityJiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical UniversityDepartment of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityDepartment of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityLaboratory of Image Science and Technology, Southeast UniversityDepartment of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityDepartment of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical UniversityAbstract Background The purpose of this study was to evaluate the accuracy of automatic cephalometric landmark localization and measurements using cephalometric analysis via artificial intelligence (AI) compared with computer-assisted manual analysis. Methods Reconstructed lateral cephalograms (RLCs) from cone-beam computed tomography (CBCT) in 85 patients were selected. Computer-assisted manual analysis (Dolphin Imaging 11.9) and AI automatic analysis (Planmeca Romexis 6.2) were used to locate 19 landmarks and obtain 23 measurements. Mean radial error (MRE) and successful detection rate (SDR) values were calculated to assess the accuracy of automatic landmark digitization. Paired t tests and Bland‒Altman plots were used to compare the differences and consistencies in cephalometric measurements between manual and automatic analysis programs. Results The MRE for 19 cephalometric landmarks was 2.07 ± 1.35 mm with the automatic program. The average SDR within 1 mm, 2 mm, 2.5 mm, 3 and 4 mm were 18.82%, 58.58%, 71.70%, 82.04% and 91.39%, respectively. Soft tissue landmarks (1.54 ± 0.85 mm) had the most consistency, while dental landmarks (2.37 ± 1.55 mm) had the most variation. In total, 15 out of 23 measurements were within the clinically acceptable level of accuracy, 2 mm or 2°. The rates of consistency within the 95% limits of agreement were all above 90% for all measurement parameters. Conclusion Automatic analysis software collects cephalometric measurements almost effectively enough to be acceptable in clinical work. Nevertheless, automatic cephalometry is not capable of completely replacing manual tracing. Additional manual supervision and adjustment for automatic programs can increase accuracy and efficiency.https://doi.org/10.1186/s12903-023-02881-8Cephalometric analysisAutomatic identificationCone-beam CTArtificial intelligent
spellingShingle Han Bao
Kejia Zhang
Chenhao Yu
Hu Li
Dan Cao
Huazhong Shu
Luwei Liu
Bin Yan
Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
BMC Oral Health
Cephalometric analysis
Automatic identification
Cone-beam CT
Artificial intelligent
title Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
title_full Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
title_fullStr Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
title_full_unstemmed Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
title_short Evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
title_sort evaluating the accuracy of automated cephalometric analysis based on artificial intelligence
topic Cephalometric analysis
Automatic identification
Cone-beam CT
Artificial intelligent
url https://doi.org/10.1186/s12903-023-02881-8
work_keys_str_mv AT hanbao evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT kejiazhang evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT chenhaoyu evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT huli evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT dancao evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT huazhongshu evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT luweiliu evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence
AT binyan evaluatingtheaccuracyofautomatedcephalometricanalysisbasedonartificialintelligence