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Piyarathne NS, Liyanage SN, Rasnayaka RMSGK, Hettiarachchi PVKS, Devindi GAI, Francis FBAH, Dissanayake DMDR, Ranasinghe RANS, Pavithya MBD, Nawinne IB, Ragel RG, Jayasinghe RD. A comprehensive dataset of annotated oral cavity images for diagnosis of oral cancer and oral potentially malignant disorders. Oral Oncol 2024; 156:106946. [PMID: 39002299 DOI: 10.1016/j.oraloncology.2024.106946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/20/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
OBJECTIVES This study aims to address the critical gap of unavailability of publicly accessible oral cavity image datasets for developing machine learning (ML) and artificial intelligence (AI) technologies for the diagnosis and prognosis of oral cancer (OCA) and oral potentially malignant disorders (OPMD), with a particular focus on the high prevalence and delayed diagnosis in Asia. MATERIALS AND METHODS Following ethical approval and informed written consent, images of the oral cavity were obtained from mobile phone cameras and clinical data was extracted from hospital records from patients attending to the Dental Teaching Hospital, Peradeniya, Sri Lanka. After data management and hosting, image categorization and annotations were done by clinicians using a custom-made software tool developed by the research team. RESULTS A dataset comprising 3000 high-quality, anonymized images obtained from 714 patients were classified into four distinct categories: healthy, benign, OPMD, and OCA. Images were annotated with polygonal shaped oral cavity and lesion boundaries. Each image is accompanied by patient metadata, including age, sex, diagnosis, and risk factor profiles such as smoking, alcohol, and betel chewing habits. CONCLUSION Researchers can utilize the annotated images in the COCO format, along with the patients' metadata, to enhance ML and AI algorithm development.
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Affiliation(s)
- N S Piyarathne
- Institute of Dentistry, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, AB25 2ZR, United Kingdom; Center for Research in Oral Cancer, Department of Basic Sciences, Faculty of Dental Sciences, University of Peradeniya, Kandy, 20400, Sri Lanka.
| | - S N Liyanage
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - R M S G K Rasnayaka
- Department of Prosthetic Dentistry, Faculty of Dental Sciences, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - P V K S Hettiarachchi
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Queensland, 4102, Australia; Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - G A I Devindi
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - F B A H Francis
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - D M D R Dissanayake
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - R A N S Ranasinghe
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - M B D Pavithya
- Department of Information Technology, Uppsala University, Uppsala, 75105, Sweden
| | - I B Nawinne
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - R G Ragel
- Department of Computer Engineering, Faculty of Engineering, University of Peradeniya, Kandy, 20400, Sri Lanka
| | - R D Jayasinghe
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Kandy, 20400, Sri Lanka
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Hsu Y, Chou CY, Huang YC, Liu YC, Lin YL, Zhong ZP, Liao JK, Lee JC, Chen HY, Lee JJ, Chen SJ. Oral mucosal lesions triage via YOLOv7 models. J Formos Med Assoc 2024:S0929-6646(24)00313-9. [PMID: 39003230 DOI: 10.1016/j.jfma.2024.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/25/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024] Open
Abstract
BACKGROUND/PURPOSE The global incidence of lip and oral cavity cancer continues to rise, necessitating improved early detection methods. This study leverages the capabilities of computer vision and deep learning to enhance the early detection and classification of oral mucosal lesions. METHODS A dataset initially consisting of 6903 white-light macroscopic images collected from 2006 to 2013 was expanded to over 50,000 images to train the YOLOv7 deep learning model. Lesions were categorized into three referral grades: benign (green), potentially malignant (yellow), and malignant (red), facilitating efficient triage. RESULTS The YOLOv7 models, particularly the YOLOv7-E6, demonstrated high precision and recall across all lesion categories. The YOLOv7-D6 model excelled at identifying malignant lesions with notable precision, recall, and F1 scores. Enhancements, including the integration of coordinate attention in the YOLOv7-D6-CA model, significantly improved the accuracy of lesion classification. CONCLUSION The study underscores the robust comparison of various YOLOv7 model configurations in the classification to triage oral lesions. The overall results highlight the potential of deep learning models to contribute to the early detection of oral cancers, offering valuable tools for both clinical settings and remote screening applications.
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Affiliation(s)
- Yu Hsu
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Cheng-Ying Chou
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Yu-Cheng Huang
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Chieh Liu
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Yong-Long Lin
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Zi-Ping Zhong
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Jun-Kai Liao
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Jun-Ching Lee
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsin-Yu Chen
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Jang-Jaer Lee
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Department of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Shyh-Jye Chen
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Radiology, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Jin-Yu ML, Min CW, Si Jin JL, Babar MG, Mahdi SS. Practical applications of teledentistry during the Covid-19 pandemic in ASEAN member states - a systematic review. BMC Oral Health 2024; 24:421. [PMID: 38580980 PMCID: PMC10996261 DOI: 10.1186/s12903-024-04177-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/22/2024] [Indexed: 04/07/2024] Open
Abstract
OBJECTIVE The objective of this review is to determine the utilisation and adoption of teledentistry based solutions and technologies during the Covid-19 Pandemic in the Asean region. BACKGROUND Teledentistry is a branch of telemedicine that has rapidly advanced in the last few years and has the potential to provide solutions to oral health problems of patients and locations that do not have prompt and immediate access to a dentist or dental services. The Covid-19 has increased the adaption of all digital health technologies and teledentistry is no exception. METHODOLOGY The study utilized online databases such as Pubmed (Medline), Scopus (Embase) and CINAHL for the purpose of document search. Newcastle Ottawa (NOS) scale was used to determine the quality of the studies included in our systematic review. PRISMA guidelines were used as the criteria for reporting items in the systematic review. RESULTS A total of 1297 documents were found after applying the search criteria and the keywords for the selected study. After applying the Prisma guidelines, removal of duplicates and irrelevant entries, 10 studies that were conducted during the Covid-19 pandemic were selected, fitting the inclusion criteria. All the studies included were evaluated for quality and risk of bias through the Newcastle Ottawa scale. Only high-quality studies were included for the final review. CONCLUSION Teledentistry is a cost-effective solution to screen, diagnose and treat dental patients from a distance. Teledentistry also has the potential to continue seamless continuation of dental education to dental students, during disruptive and non-disruptive periods. ASEAN countries should fully utilise the potential of teledentistry, however sound and effective legislation would be the key first step to achieving that potential.
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Affiliation(s)
- Mandy Loh Jin-Yu
- Division of Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Cheong Wayn Min
- Division of Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Jason Law Si Jin
- Division of Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Muneer Gohar Babar
- Division of Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia.
| | - Syed Sarosh Mahdi
- Division of Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia.
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Kallarakkal TG, Zaini ZM, Ghani WMN, Karen-Ng LP, Siriwardena BSMS, Cheong SC, Tilakaratne WM. Calibration improves the agreement in grading oral epithelial dysplasia-Findings from a National Workshop in Malaysia. J Oral Pathol Med 2024; 53:53-60. [PMID: 38081145 DOI: 10.1111/jop.13501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/18/2023] [Accepted: 11/25/2023] [Indexed: 01/24/2024]
Abstract
INTRODUCTION A major pitfall of many of the established oral epithelial dysplasia (OED) grading criteria is their lack of reproducibility and accuracy to predict malignant transformation. The main objective of this study was to determine whether calibration of practicing oral pathologists on OED grading could improve the reproducibility of the WHO 2017 and the binary OED grading systems. METHODS A nationwide online exercise was carried out to determine the influence of calibration on the reproducibility of the WHO 2017 and the binary OED grading systems. RESULTS A significant improvement was observed in the inter-observer agreement for the WHO 2017 OED grading system (K 0.196 vs. 0.448; Kw 0.357 vs. 0.562) after the calibration exercise. The significant difference (p = 0.027) in the level of agreement between those with five or more years and less than 5 years of experience was no more observed (p = 0.426) after the calibration exercise. The percent agreement for binary grading was significantly higher (91.8%) for buccal mucosal lesions as compared to lesions on the tongue after the calibration exercise. CONCLUSION This study validates the significance of calibration in improving the reproducibility of OED grading. The nationwide exercise resulted in a statistically significant improvement in the inter-observer agreement for the WHO 2017 OED grading system among a large number of oral pathologists. It is highly recommended that similar exercises should be organized periodically by professional bodies responsible for continuing education among oral pathologists to improve the reliability of OED grading for optimal treatment of oral potentially malignant disorders.
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Affiliation(s)
- Thomas George Kallarakkal
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research and Coordinating Centre, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Zuraiza Mohamad Zaini
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research and Coordinating Centre, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Wan Maria Nabillah Ghani
- Oral Cancer Research and Coordinating Centre, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Lee Peng Karen-Ng
- Oral Cancer Research and Coordinating Centre, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - B S M S Siriwardena
- Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka
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