Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy

Abstract To evaluate the generalizability of artificial intelligence (AI) algorithms that use deep learning methods to identify middle ear disease from otoscopic images, between internal to external performance. 1842 otoscopic images were collected from three independent sources: (a) Van, Turkey, (b...

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Main Authors: Al-Rahim Habib, Yixi Xu, Kris Bock, Shrestha Mohanty, Tina Sederholm, William B. Weeks, Rahul Dodhia, Juan Lavista Ferres, Chris Perry, Raymond Sacks, Narinder Singh
Format: Article
Language:English
Published: Nature Portfolio 2023-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-31921-0
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author Al-Rahim Habib
Yixi Xu
Kris Bock
Shrestha Mohanty
Tina Sederholm
William B. Weeks
Rahul Dodhia
Juan Lavista Ferres
Chris Perry
Raymond Sacks
Narinder Singh
author_facet Al-Rahim Habib
Yixi Xu
Kris Bock
Shrestha Mohanty
Tina Sederholm
William B. Weeks
Rahul Dodhia
Juan Lavista Ferres
Chris Perry
Raymond Sacks
Narinder Singh
author_sort Al-Rahim Habib
collection DOAJ
description Abstract To evaluate the generalizability of artificial intelligence (AI) algorithms that use deep learning methods to identify middle ear disease from otoscopic images, between internal to external performance. 1842 otoscopic images were collected from three independent sources: (a) Van, Turkey, (b) Santiago, Chile, and (c) Ohio, USA. Diagnostic categories consisted of (i) normal or (ii) abnormal. Deep learning methods were used to develop models to evaluate internal and external performance, using area under the curve (AUC) estimates. A pooled assessment was performed by combining all cohorts together with fivefold cross validation. AI-otoscopy algorithms achieved high internal performance (mean AUC: 0.95, 95%CI: 0.80–1.00). However, performance was reduced when tested on external otoscopic images not used for training (mean AUC: 0.76, 95%CI: 0.61–0.91). Overall, external performance was significantly lower than internal performance (mean difference in AUC: −0.19, p ≤ 0.04). Combining cohorts achieved a substantial pooled performance (AUC: 0.96, standard error: 0.01). Internally applied algorithms for otoscopy performed well to identify middle ear disease from otoscopy images. However, external performance was reduced when applied to new test cohorts. Further efforts are required to explore data augmentation and pre-processing techniques that might improve external performance and develop a robust, generalizable algorithm for real-world clinical applications.
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spelling doaj.art-178e95a4dae24ad3951de74bfc4191722023-04-03T05:27:21ZengNature PortfolioScientific Reports2045-23222023-04-011311910.1038/s41598-023-31921-0Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopyAl-Rahim Habib0Yixi Xu1Kris Bock2Shrestha Mohanty3Tina Sederholm4William B. Weeks5Rahul Dodhia6Juan Lavista Ferres7Chris Perry8Raymond Sacks9Narinder Singh10Faculty of Medicine and Health, University of SydneyAI for Good Lab, MicrosoftAzure FastTrack EngineeringMicrosoftAI for Good Lab, MicrosoftAI for Good Lab, MicrosoftAI for Good Lab, MicrosoftAI for Good Lab, MicrosoftUniversity of Queensland Medical SchoolFaculty of Medicine and Health, University of SydneyFaculty of Medicine and Health, University of SydneyAbstract To evaluate the generalizability of artificial intelligence (AI) algorithms that use deep learning methods to identify middle ear disease from otoscopic images, between internal to external performance. 1842 otoscopic images were collected from three independent sources: (a) Van, Turkey, (b) Santiago, Chile, and (c) Ohio, USA. Diagnostic categories consisted of (i) normal or (ii) abnormal. Deep learning methods were used to develop models to evaluate internal and external performance, using area under the curve (AUC) estimates. A pooled assessment was performed by combining all cohorts together with fivefold cross validation. AI-otoscopy algorithms achieved high internal performance (mean AUC: 0.95, 95%CI: 0.80–1.00). However, performance was reduced when tested on external otoscopic images not used for training (mean AUC: 0.76, 95%CI: 0.61–0.91). Overall, external performance was significantly lower than internal performance (mean difference in AUC: −0.19, p ≤ 0.04). Combining cohorts achieved a substantial pooled performance (AUC: 0.96, standard error: 0.01). Internally applied algorithms for otoscopy performed well to identify middle ear disease from otoscopy images. However, external performance was reduced when applied to new test cohorts. Further efforts are required to explore data augmentation and pre-processing techniques that might improve external performance and develop a robust, generalizable algorithm for real-world clinical applications.https://doi.org/10.1038/s41598-023-31921-0
spellingShingle Al-Rahim Habib
Yixi Xu
Kris Bock
Shrestha Mohanty
Tina Sederholm
William B. Weeks
Rahul Dodhia
Juan Lavista Ferres
Chris Perry
Raymond Sacks
Narinder Singh
Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
Scientific Reports
title Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
title_full Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
title_fullStr Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
title_full_unstemmed Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
title_short Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
title_sort evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy
url https://doi.org/10.1038/s41598-023-31921-0
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