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Latip AAA, Kipli K, Kamaruddin AMNA, Sapawi R, Lias K, Jalil MA, Tamrin KF, Tajudin NMA, Ong HY, Mahmood MH, Jali SK, Sahari SK, Mat DAA, Lim LT. Development of 3D-printed universal adapter in enhancing retinal imaging accessibility. 3D Print Med 2024; 10:23. [PMID: 39028380 PMCID: PMC11264814 DOI: 10.1186/s41205-024-00231-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND The revolutionary technology of smartphone-based retinal imaging has been consistently improving over the years. Smartphone-based retinal image acquisition devices are designed to be portable, easy to use, and cost-efficient, which enables eye care to be more widely accessible especially in geographically remote areas. This enables early disease detection for those who are in low- and middle- income population or just in general has very limited access to eye care. This study investigates the limitation of smartphone compatibility of existing smartphone-based retinal image acquisition devices. Additionally, this study aims to propose a universal adapter design that is usable with an existing smartphone-based retinal image acquisition device known as the PanOptic ophthalmoscope. This study also aims to simulate the reliability, validity, and performance overall of the developed prototype. METHODS A literature review has been conducted that identifies the limitation of smartphone compatibility among existing smartphone-based retinal image acquisition devices. Designing and modeling of proposed adapter were performed using the software AutoCAD 3D. For the proposed performance evaluation, finite element analysis (FEA) in the software Autodesk Inventor and 5-point scale method were demonstrated. RESULTS Published studies demonstrate that most of the existing smartphone-based retinal imaging devices have compatibility limited to specific older smartphone models. This highlights the benefit of a universal adapter in broadening the usability of existing smartphone-based retinal image acquisition devices. A functional universal adapter design has been developed that demonstrates its compatibility with a variety of smartphones regardless of the smartphone dimension or the position of the smartphone's camera lens. The proposed performance evaluation method generates an efficient stress analysis of the proposed adapter design. The end-user survey results show a positive overall performance of the developed universal adapter. However, a significant difference between the expert's views on the developed adapter and the quality of images is observed. CONCLUSION The compatibility of existing smartphone-based retinal imaging devices is still mostly limited to specific smartphone models. Besides this, the concept of a universal and suitable adapter for retinal imaging using the PanOptic ophthalmoscope was presented and validated in this paper. This work provides a platform for future development of smartphone-based ophthalmoscope that is universal.
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Affiliation(s)
- Aisya Amelia Abdul Latip
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Kuryati Kipli
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia.
| | | | - Rohana Sapawi
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Kasumawati Lias
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Muhammad Arif Jalil
- Department of Physics, Faculty of Science, Universiti Teknologi Malaysia (UTM), Skudai, Johor, 81310, Malaysia
| | - Khairul Fikri Tamrin
- Department of Mechanical and Manufacturing Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Nurul Mirza Afiqah Tajudin
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Han Yi Ong
- Department of Clinical Science, Faculty of Medicine and Health Sciences (FMHS), Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, 94300, Malaysia
| | - Muhammad Hamdi Mahmood
- Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences (FMHS), Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Malaysia
| | - Suriati Khartini Jali
- Faculty of Computer Science and Information Technology, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Siti Kudnie Sahari
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Dayang Azra Awang Mat
- Department of Electrical and Electronics Engineering, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Lik Thai Lim
- Department of Ophthalmology, Faculty of Medicine and Health Sciences (FMHS), Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, 94300, Malaysia
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Ahn SJ, Kim YH. Clinical Applications and Future Directions of Smartphone Fundus Imaging. Diagnostics (Basel) 2024; 14:1395. [PMID: 39001285 PMCID: PMC11240943 DOI: 10.3390/diagnostics14131395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
The advent of smartphone fundus imaging technology has marked a significant evolution in the field of ophthalmology, offering a novel approach to the diagnosis and management of retinopathy. This review provides an overview of smartphone fundus imaging, including clinical applications, advantages, limitations, clinical applications, and future directions. The traditional fundus imaging techniques are limited by their cost, portability, and accessibility, particularly in resource-limited settings. Smartphone fundus imaging emerges as a cost-effective, portable, and accessible alternative. This technology facilitates the early detection and monitoring of various retinal pathologies, including diabetic retinopathy, age-related macular degeneration, and retinal vascular disorders, thereby democratizing access to essential diagnostic services. Despite its advantages, smartphone fundus imaging faces challenges in image quality, standardization, regulatory considerations, and medicolegal issues. By addressing these limitations, this review highlights the areas for future research and development to fully harness the potential of smartphone fundus imaging in enhancing patient care and visual outcomes. The integration of this technology into telemedicine is also discussed, underscoring its role in facilitating remote patient care and collaborative care among physicians. Through this review, we aim to contribute to the understanding and advancement of smartphone fundus imaging as a valuable tool in ophthalmic practice, paving the way for its broader adoption and integration into medical diagnostics.
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Affiliation(s)
- Seong Joon Ahn
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul 04763, Republic of Korea
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Zhang J, Luo X, Li D, Peng Y, Gao G, Lei L, Gao M, Lu L, Xu Y, Yu T, Lin S, Ma Y, Yao C, Zou H. Evaluating imaging repeatability of fully self-service fundus photography within a community-based eye disease screening setting. Biomed Eng Online 2024; 23:32. [PMID: 38475784 DOI: 10.1186/s12938-024-01222-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
PURPOSE This study aimed to investigate the imaging repeatability of self-service fundus photography compared to traditional fundus photography performed by experienced operators. DESIGN Prospective cross-sectional study. METHODS In a community-based eye diseases screening site, we recruited 65 eyes (65 participants) from the resident population of Shanghai, China. All participants were devoid of cataract or any other conditions that could potentially compromise the quality of fundus imaging. Participants were categorized into fully self-service fundus photography or traditional fundus photography group. Image quantitative analysis software was used to extract clinically relevant indicators from the fundus images. Finally, a statistical analysis was performed to depict the imaging repeatability of fully self-service fundus photography. RESULTS There was no statistical difference in the absolute differences, or the extents of variation of the indicators between the two groups. The extents of variation of all the measurement indicators, with the exception of the optic cup area, were below 10% in both groups. The Bland-Altman plots and multivariate analysis results were consistent with results mentioned above. CONCLUSIONS The image repeatability of fully self-service fundus photography is comparable to that of traditional fundus photography performed by professionals, demonstrating promise in large-scale eye disease screening programs.
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Affiliation(s)
- Juzhao Zhang
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
- Department of Ophthalmology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xuan Luo
- Songjiang Disease Control and Prevention Center, Shanghai, China
| | - Deshang Li
- Sijing Community Health Service Center, Shanghai, China
| | - Yajun Peng
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Guiling Gao
- Songjiang Disease Control and Prevention Center, Shanghai, China
| | - Liangwen Lei
- Sijing Community Health Service Center, Shanghai, China
| | - Meng Gao
- Sijing Community Health Service Center, Shanghai, China
| | - Lina Lu
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Yi Xu
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Tao Yu
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Senlin Lin
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China.
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China.
| | - Yingyan Ma
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China.
- National Clinical Research Center for Eye Diseases, Shanghai, China.
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China.
- Department of Ophthalmology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Chunxia Yao
- Songjiang Disease Control and Prevention Center, Shanghai, China.
| | - Haidong Zou
- Shanghai Eye Disease Prevention & Treatment Center/Shanghai Eye Hospital, School of Medicine, Tongji University, Shanghai, China.
- National Clinical Research Center for Eye Diseases, Shanghai, China.
- Shanghai Engineering Center of Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China.
- Department of Ophthalmology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Mitchaï PM, Mapinduzi J, Verbrugghe J, Michiels S, Janssens L, Kossi O, Bonnechère B, Timmermans A. Mobile technologies for rehabilitation in non-specific spinal disorders: a systematic review of the efficacy and potential for implementation in low- and middle-income countries. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2023; 32:4077-4100. [PMID: 37794182 DOI: 10.1007/s00586-023-07964-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 05/22/2023] [Accepted: 09/16/2023] [Indexed: 10/06/2023]
Abstract
PURPOSE The aim of this systematic review was primarily to identify the types of mHealth technologies for the rehabilitation of non-specific spinal disorders, second to evaluate their efficacy, and finally to determine their applicability in LMICs. METHODS Three databases (Scopus, PubMed, and Web of Science) were searched for randomized controlled trials and clinical trials from January 2012 until December 2022. Studies were found eligible when using mHealth technologies for the rehabilitation of non-specific spinal disorders. To evaluate efficacy, the primary outcome was pain intensity, and the secondary outcomes were disability and quality of life. To evaluate the applicability in LMICs, information about financial and geographical accessibility, offline usability, and languages was extracted. RESULTS Fifteen studies were included comprising 1828 participants who suffer from non-specific low back pain (86.05%) and non-specific neck pain (13.95%). Fourteen distinct smartphone-based interventions and two sensor system interventions were found, with a duration ranging from four weeks to six months. All mHealth interventions demonstrated efficacy for the improvement of pain, disability and quality of life in non-specific spinal disorders, particularly low back pain. Five of the evaluated smartphone applications were free of charge accessible and had language features that could be adapted for use in LMICs. CONCLUSION mHealth interventions can be used and integrated into the conventional treatment of non-specific spinal disorders in rehabilitation. They have demonstrated efficacy and could be implemented in LMICs with minor adaptations to overcome language barriers and the absolute necessity of the internet.
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Affiliation(s)
- Pénielle Mahutchegnon Mitchaï
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
- ENATSE, National School of Public Health and Epidemiology, University of Parakou, 03 BP 10, Parakou, Benin
| | - Jean Mapinduzi
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
- Department of Physiotherapy, National Institute of Public Health, University of Bujumbura, Bujumbura, Burundi
| | - Jonas Verbrugghe
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
| | - Sarah Michiels
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
| | - Lotte Janssens
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
| | - Oyéné Kossi
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium.
- ENATSE, National School of Public Health and Epidemiology, University of Parakou, 03 BP 10, Parakou, Benin.
- Unit of Neurology and NeuroRehabilitation, University Hospital of Parakou, Parakou, Benin.
| | - Bruno Bonnechère
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
- Technology-Supported and Data-Driven Rehabilitation, Data Sciences Institute, Hasselt University, Diepenbeek, Belgium
| | - Annick Timmermans
- REVAL, Rehabilitation Research Center, Hasselt University, Diepenbeek, Belgium
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Calabrèse A, Fournet V, Dours S, Matonti F, Castet E, Kornprobst P. A New Vessel-Based Method to Estimate Automatically the Position of the Nonfunctional Fovea on Altered Retinography From Maculopathies. Transl Vis Sci Technol 2023; 12:9. [PMID: 37418249 PMCID: PMC10337789 DOI: 10.1167/tvst.12.7.9] [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: 12/19/2022] [Accepted: 06/01/2023] [Indexed: 07/08/2023] Open
Abstract
Purpose The purpose of this study was to validate a new automated method to locate the fovea on normal and pathological fundus images. Compared to the normative anatomic measures (NAMs), our vessel-based fovea localization (VBFL) approach relies on the retina's vessel structure to make predictions. Methods The spatial relationship between the fovea location and vessel characteristics is learnt from healthy fundus images and then used to predict fovea location in new images. We evaluate the VBFL method on three categories of fundus images: healthy images acquired with different head orientations and fixation locations, healthy images with simulated macular lesions, and pathological images from age-related macular degeneration (AMD). Results For healthy images taken with the head tilted to the side, the NAM estimation error is significantly multiplied by 4, whereas VBFL yields no significant increase, representing a 73% reduction in prediction error. With simulated lesions, VBFL performance decreases significantly as lesion size increases and remains better than NAM until lesion size reaches 200 degrees2. For pathological images, average prediction error was 2.8 degrees, with 64% of the images yielding an error of 2.5 degrees or less. VBFL was not robust for images showing darker regions and/or incomplete representation of the optic disk. Conclusions The vascular structure provides enough information to precisely locate the fovea in fundus images in a way that is robust to head tilt, eccentric fixation location, missing vessels, and actual macular lesions. Translational Relevance The VBFL method should allow researchers and clinicians to assess automatically the eccentricity of a newly developed area of fixation in fundus images with macular lesions.
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Affiliation(s)
- Aurélie Calabrèse
- Aix-Marseille Univ, CNRS, LPC, Marseille, France
- Université Côte d'Azur, Inria, France
| | | | | | - Frédéric Matonti
- Centre Monticelli Paradis d'Ophtalmologie, Marseille, France
- Aix-Marseille Univ, CNRS, INT, Marseille, France
- Groupe Almaviva Santé, Clinique Juge, Marseille, France
| | - Eric Castet
- Aix-Marseille Univ, CNRS, LPC, Marseille, France
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Macher J, Porter RS, Levin AV. Ophthalmic imaging in abusive head trauma. CHILD ABUSE & NEGLECT 2023; 139:106106. [PMID: 36867971 DOI: 10.1016/j.chiabu.2023.106106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/31/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Ophthalmic imaging plays an increasingly important role the evaluation of abusive head trauma, however these imaging modalities may be unfamiliar to non-ophthalmologists. OBJECTIVE To provide pediatricians and child abuse pediatric professionals with background on ophthalmic imaging techniques in the context of suspected abuse, as well as information on commercial options and costs for those interested in augmenting their ophthalmic imaging capabilities. METHODS We performed a review of the ophthalmic imaging literature for fundus photography, ocular coherence tomography, fluorescein angiography, ocular ultrasound, computed tomography, magnetic resonance imaging and postmortem imaging. We also contacted individual vendors for equipment pricing information. RESULTS For each ophthalmic imaging modality, we demonstrate its role in the evaluation of abusive head trauma including indications, potential findings, sensitivity and specificity of findings for abuse, and commercial options. CONCLUSIONS Ophthalmic imaging is an important supportive component of the evaluation for abusive head trauma. When used in conjunction with clinical examination, ophthalmic imaging can improve diagnostic accuracy, support documentation, and possibly improve communication in medicolegal contexts.
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Affiliation(s)
- Jared Macher
- University of Rochester School of Medicine, Rochester, NY, USA.
| | - Randall S Porter
- Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA.
| | - Alex V Levin
- University of Rochester School of Medicine, Rochester, NY, USA; Pediatric Ophthalmology and Ocular Genetics, Flaum Eye Institute, Rochester, NY, USA; Clinical Genetics, Golisano Children's Hospital, Rochester, NY, USA.
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Lim WS, Ho HY, Ho HC, Chen YW, Lee CK, Chen PJ, Lai F, Jang JSR, Ko ML. Use of multimodal dataset in AI for detecting glaucoma based on fundus photographs assessed with OCT: focus group study on high prevalence of myopia. BMC Med Imaging 2022; 22:206. [PMID: 36434508 PMCID: PMC9700928 DOI: 10.1186/s12880-022-00933-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/10/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Glaucoma is one of the major causes of blindness; it is estimated that over 110 million people will be affected by glaucoma worldwide by 2040. Research on glaucoma detection using deep learning technology has been increasing, but the diagnosis of glaucoma in a large population with high incidence of myopia remains a challenge. This study aimed to provide a decision support system for the automatic detection of glaucoma using fundus images, which can be applied for general screening, especially in areas of high incidence of myopia. METHODS A total of 1,155 fundus images were acquired from 667 individuals with a mean axial length of 25.60 ± 2.0 mm at the National Taiwan University Hospital, Hsinchu Br. These images were graded based on the findings of complete ophthalmology examinations, visual field test, and optical coherence tomography into three groups: normal (N, n = 596), pre-perimetric glaucoma (PPG, n = 66), and glaucoma (G, n = 493), and divided into a training-validation (N: 476, PPG: 55, G: 373) and test (N: 120, PPG: 11, G: 120) sets. A multimodal model with the Xception model as image feature extraction and machine learning algorithms [random forest (RF), support vector machine (SVM), dense neural network (DNN), and others] was applied. RESULTS The Xception model classified the N, PPG, and G groups with 93.9% of the micro-average area under the receiver operating characteristic curve (AUROC) with tenfold cross-validation. Although normal and glaucoma sensitivity can reach 93.51% and 86.13% respectively, the PPG sensitivity was only 30.27%. The AUROC increased to 96.4% in the N + PPG and G groups. The multimodal model with the N + PPG and G groups showed that the AUROCs of RF, SVM, and DNN were 99.56%, 99.59%, and 99.10%, respectively; The N and PPG + G groups had less than 1% difference. The test set showed an overall 3%-5% less AUROC than the validation results. CONCLUSION The multimodal model had good AUROC while detecting glaucoma in a population with high incidence of myopia. The model shows the potential for general automatic screening and telemedicine, especially in Asia. TRIAL REGISTRATION The study was approved by the Institutional Review Board of the National Taiwan University Hospital, Hsinchu Branch (no. NTUHHCB 108-025-E).
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Affiliation(s)
- Wee Shin Lim
- grid.19188.390000 0004 0546 0241Department of Computer Science and Information Engineering, National Taiwan University, Taipei City 10617, Taiwan, ROC
| | - Heng-Yen Ho
- grid.19188.390000 0004 0546 0241School of Medicine, National Taiwan University, Taipei City 10617, Taiwan, ROC
| | - Heng-Chen Ho
- grid.19188.390000 0004 0546 0241School of Medicine, National Taiwan University, Taipei City 10617, Taiwan, ROC
| | - Yan-Wu Chen
- grid.412036.20000 0004 0531 9758Department of Applied Mathematics, National Sun Yat-Sen University, Kaohsiung City 804201, Taiwan, ROC
| | - Chih-Kuo Lee
- grid.412094.a0000 0004 0572 7815Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu City 300, Taiwan, ROC
| | - Pao-Ju Chen
- grid.412094.a0000 0004 0572 7815Department of Ophthalmology, National Taiwan University Hospital Hsin-Chu Branch, No. 25, Lane 442, Sec.1, Jingguo Rd., Hsinchu City 300, Taiwan, ROC
| | - Feipei Lai
- grid.19188.390000 0004 0546 0241Department of Electrical Engineering, National Taiwan University, Taipei City 10617, Taiwan, ROC
| | - Jyh-Shing Roger Jang
- grid.19188.390000 0004 0546 0241Department of Computer Science and Information Engineering, National Taiwan University, Taipei City 10617, Taiwan, ROC
| | - Mei-Lan Ko
- grid.412094.a0000 0004 0572 7815Department of Ophthalmology, National Taiwan University Hospital Hsin-Chu Branch, No. 25, Lane 442, Sec.1, Jingguo Rd., Hsinchu City 300, Taiwan, ROC ,grid.38348.340000 0004 0532 0580Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Taipei City 10617, Taiwan, ROC
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Schulte AG, Ricci LR, Melville JD, Brown J. Emerging Trends in Smartphone Photo Documentation of Child Physical Abuse. Pediatr Emerg Care 2022; 38:464-468. [PMID: 36040467 DOI: 10.1097/pec.0000000000002559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Photo documentation of injuries on children is universally recommended in cases of suspected child physical abuse. As technology improves, the ability to document physical examination findings through smartphone photography is increasingly accessible and practical. The quality of images captured on smartphones now rivals traditional photography and the integration of photo capture within the electronic medical record has led to a variety of fields adopting smartphone photo documentation for diagnosis, consult, and follow-up. However, in cases of child physical abuse, practitioners have been hesitant to adopt smartphones as a primary means of photo documentation because of concerns around image quality, privacy, and security. In this article, we discuss the technology of available smartphone cameras and current evidence regarding their use for photo documentation, use existing guidelines to propose a workflow to improve the yield of smartphone photo documentation in child physical abuse, and discuss common medicolegal concerns.
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Affiliation(s)
- Ansley G Schulte
- From the Office of Medical Education, Columbia University Medical Center, New York, NY
| | | | - John D Melville
- Division of Child Abuse Pediatrics, Department of Pediatrics, College of Medicine, Medical University of South Carolina, Charleston, SC
| | - Jocelyn Brown
- Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Medical Center, New York, NY
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Smartphone-Enabled versus Conventional Otoscopy in Detecting Middle Ear Disease: A Meta-Analysis. Diagnostics (Basel) 2022; 12:diagnostics12040972. [PMID: 35454020 PMCID: PMC9029949 DOI: 10.3390/diagnostics12040972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 01/27/2023] Open
Abstract
Traditional otoscopy has some limitations, including poor visualization and inadequate time for evaluation in suboptimal environments. Smartphone-enabled otoscopy may improve examination quality and serve as a potential diagnostic tool for middle ear diseases using a telemedicine approach. The main objectives are to compare the correctness of smartphone-enabled otoscopy and traditional otoscopy and to evaluate the diagnostic confidence of the examiner via meta-analysis. From inception through 20 January 2022, the Cochrane Library, PubMed, EMBASE, Web of Science, and Scopus databases were searched. Studies comparing smartphone-enabled otoscopy with traditional otoscopy regarding the outcome of interest were eligible. The relative risk (RR) for the rate of correctness in diagnosing ear conditions and the standardized mean difference (SMD) in diagnostic confidence were extracted. Sensitivity analysis and trial sequential analyses (TSAs) were conducted to further examine the pooled results. Study quality was evaluated by using the revised Cochrane risk of bias tool 2. Consequently, a total of 1840 examinees were divided into the smartphone-enabled otoscopy group and the traditional otoscopy group. Overall, the pooled result showed that smartphone-enabled otoscopy was associated with higher correctness than traditional otoscopy (RR, 1.26; 95% CI, 1.06 to 1.51; p = 0.01; I2 = 70.0%). Consistently significant associations were also observed in the analysis after excluding the simulation study (RR, 1.10; 95% CI, 1.00 to 1.21; p = 0.04; I2 = 0%) and normal ear conditions (RR, 1.18; 95% CI, 1.01 to 1.40; p = 0.04; I2 = 65.0%). For the confidence of examiners using both otoscopy methods, the pooled result was nonsignificant between the smartphone-enabled otoscopy and traditional otoscopy groups (SMD, 0.08; 95% CI, -0.24 to 0.40; p = 0.61; I2 = 16.3%). In conclusion, smartphone-enabled otoscopy was associated with a higher rate of correctness in the detection of middle ear diseases, and in patients with otologic complaints, the use of smartphone-enabled otoscopy may be considered. More large-scale studies should be performed to consolidate the results.
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Jansen LG, Schultz T, Holz FG, Finger RP, Wintergerst MWM. [Smartphone-based fundus imaging: applications and adapters]. Ophthalmologe 2021; 119:112-126. [PMID: 34913992 DOI: 10.1007/s00347-021-01536-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Smartphone-based fundus imaging (SBFI) is an innovative and low-cost alternative for color fundus photography. Since the first reports on this topic more than 10 years ago a large number of studies on different adapters and clinical applications have been published. OBJECTIVE The aim of this review article is to provide an overview on the development of SBFI and adapters and clinical applications published so far. MATERIAL AND METHODS A literature search was performed using the MEDLINE and Science Citation Index Expanded databases without time restrictions. RESULTS Overall, 11 adapters were included and compared in terms of exemplary image material, field of view, acquisition costs, weight, software, application range, smartphone compatibility and certification. Previously published SBFI applications are screening for diabetic retinopathy, glaucoma and retinopathy of prematurity as well as the application in emergency medicine, pediatrics and medical education/teaching. Image quality of conventional retinal cameras is in general superior to SBFI. First approaches on automatic detection of diabetic retinopathy through SBFI are promising and the use of automatic image processing algorithms enables the generation of wide-field image montages. CONCLUSION SBFI is a versatile, mobile, low-cost alternative to conventional equipment for color fundus photography. In addition, it facilitates the delegation of ophthalmological examinations to assistance personnel in telemedical settings, could simplify retinal documentation, improve teaching, and improve ophthalmological care, particularly in countries with low and middle incomes.
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Affiliation(s)
- Linus G Jansen
- Klinik für Augenheilkunde, Universitätsklinikum Bonn, Ernst-Abbe-Str. 2, 53127, Bonn, Deutschland
| | - Thomas Schultz
- Institut für Informatik II, Universität Bonn, Friedrich-Hirzebruch-Allee 5, 53115, Bonn, Deutschland.,Bonn-Aachen International Center for Information Technology (B-IT), Universität Bonn, Friedrich-Hirzebruch-Allee 5, 53115, Bonn, Deutschland
| | - Frank G Holz
- Klinik für Augenheilkunde, Universitätsklinikum Bonn, Ernst-Abbe-Str. 2, 53127, Bonn, Deutschland
| | - Robert P Finger
- Klinik für Augenheilkunde, Universitätsklinikum Bonn, Ernst-Abbe-Str. 2, 53127, Bonn, Deutschland
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11
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Pujari A, Saluja G, Agarwal D, Sinha A, P R A, Kumar A, Sharma N. Clinical Role of Smartphone Fundus Imaging in Diabetic Retinopathy and Other Neuro-retinal Diseases. Curr Eye Res 2021; 46:1605-1613. [PMID: 34325587 DOI: 10.1080/02713683.2021.1958347] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Purpose: In today's life, many electronic gadgets have the potential to become invaluable health care devices in future. The gadgets in this category include smartphones, smartwatches, and others. Till now, smartphone role has been highlighted on many occasions in different areas, and they continue to possess immense role in clinical documentation, clinical consultation, and digitalization of ocular care. In last one decade, many treatable conditions including diabetic retinopathy, glaucoma, and other pediatric retinal diseases are being imaged using smartphones.Methods: To comprehend this cumulative knowledge, a detailed medical literature search was conducted on PubMed/Medline, Scopus, and Web of Science till February 2021.Results: The included literature revealed a definitive progress in posterior segment imaging. From simple torch light with smartphone examination to present day compact handy devices with artificial intelligence integrated software's have changed the very perspectives of ocular imaging in ophthalmology. The consistently reproducible results, constantly improving imaging techniques, and most importantly their affordable costs have renegotiated their role as effective screening devices in ophthalmology. Moreover, the obtained field of view, ocular safety, and their key utility in non-ophthalmic specialties are also growing.Conclusions: To conclude, smartphone imaging can now be considered as a quick, cost-effective, and digitalized tool for posterior segment screenings, however, their definite role in routine ophthalmic clinics is yet to be established.
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Affiliation(s)
- Amar Pujari
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Gunjan Saluja
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Divya Agarwal
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Ayushi Sinha
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Ananya P R
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Atul Kumar
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Namrata Sharma
- Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
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12
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Pieczynski J, Kuklo P, Grzybowski A. The Role of Telemedicine, In-Home Testing and Artificial Intelligence to Alleviate an Increasingly Burdened Healthcare System: Diabetic Retinopathy. Ophthalmol Ther 2021; 10:445-464. [PMID: 34156632 PMCID: PMC8217784 DOI: 10.1007/s40123-021-00353-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/15/2021] [Indexed: 01/30/2023] Open
Abstract
In the presence of the ever-increasing incidence of diabetes mellitus (DM), the prevalence of diabetic eye disease (DED) is also growing. Despite many improvements in diabetic care, DM remains a leading cause of visual impairment in working-age patients. So far, prevention has been the best way to protect vision. The sooner we diagnose DED, the more effective the treatment is. Thus, diabetic retinopathy (DR) screening, especially with imaging techniques, is a method of choice for vision protection. To alleviate the burden of diabetic patients who need ophthalmic care, telemedicine and in-home testing are used, supported by artificial intelligence (AI) algorithms. This is why we decided to evaluate current image teleophthalmology methods used for DR screening. We searched the PubMed platform for papers published over the last 5 years (2015–2020) using the following key words: telemedicine in diabetic retinopathy screening, diabetic retinopathy screening, automated diabetic retinopathy screening, artificial intelligence in diabetic retinopathy screening, smartphone diabetic retinopathy testing. We have included 118 original articles meeting the above criteria, discussing imaging diabetic retinopathy screening methods. We have found that fundus cameras, stable or mobile, are most commonly used for retinal photography, with portable fundus cameras also relatively common. Other possibilities involve the use of ultra-wide-field (UWF) imaging and even optical coherence tomography (OCT) devices for DR screening. Also, the role of smartphones is increasingly recognized in the field. Retinal fundus images are assessed by humans instantly or remotely, while AI algorithms seem to be useful tools facilitating retinal image assessment. The common use of smartphones and availability of relatively cheap, easy-to-use adapters for retinal photographs augmented by AI algorithms make it possible for eye fundus photographs to be taken by non-specialists and in non-medical setting. This opens the way for in-home testing conducted on a much larger scale in the future. In conclusion, based on current DR screening techniques, we can suggest that the future practice of eye care specialists will be widely supported by AI algorithms, and this way will be more effective.
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Affiliation(s)
- Janusz Pieczynski
- Chair of Ophthalmology, University of Warmia and Mazury, Zolnierska 18, 10-561, Olsztyn, Poland. .,The Voivodal Specialistic Hospital in Olsztyn, Olsztyn, Poland.
| | - Patrycja Kuklo
- Chair of Ophthalmology, University of Warmia and Mazury, Zolnierska 18, 10-561, Olsztyn, Poland.,The Voivodal Specialistic Hospital in Olsztyn, Olsztyn, Poland
| | - Andrzej Grzybowski
- Chair of Ophthalmology, University of Warmia and Mazury, Zolnierska 18, 10-561, Olsztyn, Poland.,Institute for Research in Ophthalmology, Poznan, Poland, Gorczyczewskiego 2/3, 61-553, Poznan, Poland
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13
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Jansen LG, Shah P, Wabbels B, Holz FG, Finger RP, Wintergerst MWM. Learning curve evaluation upskilling retinal imaging using smartphones. Sci Rep 2021; 11:12691. [PMID: 34135452 PMCID: PMC8209054 DOI: 10.1038/s41598-021-92232-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 05/31/2021] [Indexed: 12/04/2022] Open
Abstract
Smartphone-based fundus imaging (SBFI) is a low-cost approach for screening of various ophthalmic diseases and particularly suited to resource limited settings. Thus, we assessed how best to upskill alternative healthcare cadres in SBFI and whether quality of obtained images is comparable to ophthalmologists. Ophthalmic assistants and ophthalmologists received a standardized training to SBFI (Heine iC2 combined with an iPhone 6) and 10 training examinations for capturing central retinal images. Examination time, total number of images, image alignment, usable field-of-view, and image quality (sharpness/focus, reflex artifacts, contrast/illumination) were analyzed. Thirty examiners (14 ophthalmic assistants and 16 ophthalmologists) and 14 volunteer test subjects were included. Mean examination time (1st and 10th training, respectively: 2.17 ± 1.54 and 0.56 ± 0.51 min, p < .0001), usable field-of-view (92 ± 16% and 98 ± 6.0%, p = .003) and image quality in terms of sharpness/focus (p = .002) improved by the training. Examination time was significantly shorter for ophthalmologists compared to ophthalmic assistants (10th training: 0.35 ± 0.21 and 0.79 ± 0.65 min, p = .011), but there was no significant difference in usable field-of-view and image quality. This study demonstrates the high learnability of SBFI with a relatively short training and mostly comparable results across healthcare cadres. The results will aid implementing and planning further SBFI field studies.
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Affiliation(s)
- Linus G Jansen
- Department of Ophthalmology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Payal Shah
- Sankara Academy of Vision, Sankara Eye Hospital Bangalore, Varthur Main Road Kundalahalli Gate, Bangalore, 560037, India
| | - Bettina Wabbels
- Department of Ophthalmology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Frank G Holz
- Department of Ophthalmology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Robert P Finger
- Department of Ophthalmology, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
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