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Karabeg M, Petrovski G, Hertzberg SN, Erke MG, Fosmark DS, Russell G, Moe MC, Volke V, Raudonis V, Verkauskiene R, Sokolovska J, Haugen IBK, Petrovski BE. A pilot cost-analysis study comparing AI-based EyeArt® and ophthalmologist assessment of diabetic retinopathy in minority women in Oslo, Norway. Int J Retina Vitreous 2024; 10:40. [PMID: 38783384 PMCID: PMC11112837 DOI: 10.1186/s40942-024-00547-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/17/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is the leading cause of adult blindness in the working age population worldwide, which can be prevented by early detection. Regular eye examinations are recommended and crucial for detecting sight-threatening DR. Use of artificial intelligence (AI) to lessen the burden on the healthcare system is needed. PURPOSE To perform a pilot cost-analysis study for detecting DR in a cohort of minority women with DM in Oslo, Norway, that have the highest prevalence of diabetes mellitus (DM) in the country, using both manual (ophthalmologist) and autonomous (AI) grading. This is the first study in Norway, as far as we know, that uses AI in DR- grading of retinal images. METHODS On Minority Women's Day, November 1, 2017, in Oslo, Norway, 33 patients (66 eyes) over 18 years of age diagnosed with DM (T1D and T2D) were screened. The Eidon - True Color Confocal Scanner (CenterVue, United States) was used for retinal imaging and graded for DR after screening had been completed, by an ophthalmologist and automatically, using EyeArt Automated DR Detection System, version 2.1.0 (EyeArt, EyeNuk, CA, USA). The gradings were based on the International Clinical Diabetic Retinopathy (ICDR) severity scale [1] detecting the presence or absence of referable DR. Cost-minimization analyses were performed for both grading methods. RESULTS 33 women (64 eyes) were eligible for the analysis. A very good inter-rater agreement was found: 0.98 (P < 0.01), between the human and AI-based EyeArt grading system for detecting DR. The prevalence of DR was 18.6% (95% CI: 11.4-25.8%), and the sensitivity and specificity were 100% (95% CI: 100-100% and 95% CI: 100-100%), respectively. The cost difference for AI screening compared to human screening was $143 lower per patient (cost-saving) in favour of AI. CONCLUSION Our results indicate that The EyeArt AI system is both a reliable, cost-saving, and useful tool for DR grading in clinical practice.
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Affiliation(s)
- Mia Karabeg
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
| | - Goran Petrovski
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
- Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, 21000, Split, Croatia
- UKLONetwork, University St. Kliment Ohridski-Bitola, 7000, Bitola, Macedonia
| | - Silvia Nw Hertzberg
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
| | - Maja Gran Erke
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
| | - Dag Sigurd Fosmark
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
| | - Greg Russell
- Clinical Development, Eyenuk Inc, Woodland Hills, CA, USA
| | - Morten C Moe
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway
| | - Vallo Volke
- Faculty of Medicine, Tartu University, 50411, Tartu, Estonia
| | - Vidas Raudonis
- Automation Department, Kaunas University of Technology, 51368, Kaunas, Lithuania
| | - Rasa Verkauskiene
- Institute of Endocrinology, Lithuanian University of Health Sciences, 50161, Kaunas, Lithuania
| | | | | | - Beata Eva Petrovski
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450, Oslo, Norway.
- Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway.
- Institute of Endocrinology, Lithuanian University of Health Sciences, 50161, Kaunas, Lithuania.
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Sauesund ES, Jørstad ØK, Brunborg C, Moe MC, Erke MG, Fosmark DS, Petrovski G. A Pilot Study of Implementing Diabetic Retinopathy Screening in the Oslo Region, Norway: Baseline Results. Biomedicines 2023; 11:biomedicines11041222. [PMID: 37189840 DOI: 10.3390/biomedicines11041222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
PURPOSE to gain insight into the baseline parameters of a population with diabetes mellitus (DM) included in a pilot diabetic retinopathy (DR) screening program at Oslo University Hospital (OUH), Norway. METHODS This was a cross-sectional study of a cohort of adult patients (≥18 years) with type 1 or 2 DM (T1D and T2D). We measured the best-corrected visual acuity (BCVA), blood pressure (BP), heart rate (HR), intraocular pressure (IOP), height and weight. We also collected HbA1c, total serum cholesterol and urine-albumin, -creatinine and -albumin-to-creatinine ratio (ACR), as well as socio-demographic parameters, medications and previous screening history. We obtained color fundus photographs, which were graded by two experienced ophthalmologists according to the International Clinical Disease Severity Scale for DR. RESULTS The study included 180 eyes of 90 patients: 12 patients (13.3%) had T1D and 78 (86.7%) had T2D. In the T1D group, 5 patients (41.7%) had no DR, and 7 (58.3%) had some degree of DR. In the T2D group, 60 patients (76.9%) had no DR, and 18 (23.1%) had some degree of DR. None of the patients had proliferative DR. Of the 43 patients not newly diagnosed (time of diagnosis > 5 years for T1D and >1 years for T2D), 37.5% of the T1D patients and 5.7% of the T2D patients had previously undergone regular screening. Univariate analyses found for the whole cohort significant associations between DR and age, HbA1c, urine albumin-to-creatinine ratio, body mass index (BMI) and duration of DM. For the T2D group alone, there were significant associations between DR and HbA1c, BMI, urine creatinine, urine albumin-to-creatinine ratio and duration of DM. The analysis also showed three times higher odds for DR in the T1D group than the T2D group. CONCLUSIONS This study underscores the need for implementing a systematic DR screening program in the Oslo region, Norway, to better reach out to patients with DM and improve their screening adherence. Timely and proper treatment can prevent or mitigate vision loss and improve the prognosis. A considerable number of patients were referred from general practitioners for not being followed by an ophthalmologist.Among patients not newly diagnosed with DM, 62.8% had never had an eye exam, and the duration of DM for these patients was up to 18 years (median: 8 years).
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Affiliation(s)
- Ellen Steffenssen Sauesund
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
| | | | - Cathrine Brunborg
- Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, 0450 Oslo, Norway
| | - Morten Carstens Moe
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
| | - Maja Gran Erke
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
| | - Dag Sigurd Fosmark
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
| | - Goran Petrovski
- Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway
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Holte KB, Juel NG, Brox JI, Hanssen KF, Fosmark DS, Sell DR, Monnier VM, Berg TJ. Hand, shoulder and back stiffness in long-term type 1 diabetes; cross-sectional association with skin collagen advanced glycation end-products. The Dialong study. J Diabetes Complications 2017; 31:1408-1414. [PMID: 28705609 DOI: 10.1016/j.jdiacomp.2017.06.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/30/2017] [Accepted: 06/15/2017] [Indexed: 12/11/2022]
Abstract
AIMS We aimed to: (i) estimate the prevalence of Dupuytren's disease, trigger finger, carpal tunnel syndrome and frozen shoulder; (ii) assess stiffness of the hand, shoulder and back; and (iii) explore the association of joint stiffness with both long-term HbA1c and collagen advanced glycation end-products (AGEs) in long-term type 1 diabetes mellitus (T1DM). METHODS Patients with T1DM from 1970 or earlier attending a specialized diabetes center were included in this cross-sectional controlled study. We collected HbA1/HbA1c measurements from 1980 to 2015 and data on hand and shoulder diagnoses and joint stiffness through interviews, charts, and standardized examination. Skin biopsies were analyzed for collagen AGEs by liquid chromatography-mass spectrometry. RESULTS Lifetime prevalence of hand and shoulder diagnoses in the diabetes group (n=102) ranged from 37%-76% (frozen shoulder) versus 11%-15% in controls (n=73) (p<0.001). There was an association between joint stiffness and long-term HbA1c (odds ratio 2.01 [95% CI 1.10-3.7]) and the AGEs methyl-glyoxal-lysine-dimer (odds ratio 1.68 [95% CI 1.03-2.73]) and pentosidine (odds ratio 1.81 [95% CI 1.04-3.16]). CONCLUSIONS Patients with T1DM >45years had a very high prevalence of hand and shoulder diagnoses versus controls. Joint stiffness was associated with collagen AGEs. However, joint biopsies and prospective studies must explore this association further.
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Affiliation(s)
- Kristine Bech Holte
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Post Box 4956, Nydalen, 0424 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078, Blindern, 0316 Oslo, Norway.
| | - Niels Gunnar Juel
- Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Post Box 4956, Nydalen, 0424 Oslo, Norway
| | - Jens Ivar Brox
- Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Post Box 4956, Nydalen, 0424 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078, Blindern, 0316 Oslo, Norway
| | - Kristian Folkvord Hanssen
- The Norwegian Diabetics' Center, Sponhoggveien 19, 0284 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078, Blindern, 0316 Oslo, Norway
| | - Dag Sigurd Fosmark
- Department of Ophthalmology, Oslo University Hospital, Post Box 4956, Nydalen, 0424 Oslo, Norway
| | - David R Sell
- Department of Pathology, Case Western Reserve University School of Medicine, 2109 Adelbert Rd, Cleveland, OH 44106, USA
| | - Vincent M Monnier
- Department of Pathology, Case Western Reserve University School of Medicine, 2109 Adelbert Rd, Cleveland, OH 44106, USA
| | - Tore Julsrud Berg
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Post Box 4956, Nydalen, 0424 Oslo, Norway; The Norwegian Diabetics' Center, Sponhoggveien 19, 0284 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078, Blindern, 0316 Oslo, Norway
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Skrivarhaug T, Fosmark DS, Stene LC, Bangstad HJ, Sandvik L, Hanssen KF, Joner G. Low cumulative incidence of proliferative retinopathy in childhood-onset type 1 diabetes: a 24-year follow-up study. Diabetologia 2006; 49:2281-90. [PMID: 16955208 DOI: 10.1007/s00125-006-0364-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2006] [Accepted: 05/30/2006] [Indexed: 10/24/2022]
Abstract
AIMS/HYPOTHESIS We estimated cumulative incidence of proliferative diabetic retinopathy (PDR) and risk factors for developing diabetic retinopathy (DR) in childhood-onset type 1 diabetes. MATERIALS AND METHODS A sample of 294 patients with childhood-onset type 1 diabetes (<15 years) diagnosed in Norway between 1973 and 1982 was examined for retinopathy at baseline between 1989 and 1990 and at follow-up from 2002 to 2003. At follow-up, mean age was 33 years (range: 21-44), mean diabetes duration 24 years (19-30) and total person-time contributed 7,152 person-years. Retinal photographs were taken at baseline and follow-up. Associations between baseline factors and PDR were estimated using Cox regression models. RESULTS Overall, 262 of 294 (89.1%) developed DR from diabetes onset, of whom 31 developed PDR. The 25-year cumulative incidence of PDR was 10.9% (95% CI 7.3-14.5). Among 194 without retinopathy at baseline, 163 (84%) developed DR and nine (5%) progressed to PDR. Among 97 patients with non-proliferative DR at baseline, 19 (20%) progressed to PDR. Significant predictors for developing PDR were retinopathy at baseline (relative risk [RR]=3.71, 95% CI 1.59-8.68), HbA(1c) (RR=2.05, 1.44-2.93), and triglycerides (RR=1.55, 1.06-1.95). CONCLUSIONS/INTERPRETATION Nine out of every ten patients diagnosed with type 1 diabetes developed DR, but only one out of ten developed PDR within their first 25 years of diabetes duration. The cumulative incidence of PDR is lower than previously reported from other countries. Potentially modifiable risk factors predict the development of DR and PDR.
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Affiliation(s)
- T Skrivarhaug
- Department of Paediatrics, Ullevål University Hospital, N-0407, Oslo, Norway.
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Fosmark DS, Torjesen PA, Kilhovd BK, Berg TJ, Sandvik L, Hanssen KF, Agardh CD, Agardh E. Increased serum levels of the specific advanced glycation end product methylglyoxal-derived hydroimidazolone are associated with retinopathy in patients with type 2 diabetes mellitus. Metabolism 2006; 55:232-6. [PMID: 16423631 DOI: 10.1016/j.metabol.2005.08.017] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2005] [Accepted: 08/14/2005] [Indexed: 10/25/2022]
Abstract
Advanced glycation end products (AGEs) are thought to play a major pathogenic role in diabetic retinopathy. The most important AGE is unknown, but as increased serum methylglyoxal-derived hydroimidazolone has been demonstrated in patients with type 2 diabetes mellitus, the aim of the present study was to elucidate possible associations between serum levels of hydroimidazolone and retinopathy in patients with type 2 diabetes mellitus. We recruited 227 patients with type 2 diabetes mellitus and retinopathy ranging from none to proliferative. Level of retinopathy was determined from 7 standard field stereo photographs per eye according to the Early Treatment Diabetic Retinopathy Study. The patients were 66 +/- 11 years old, with a known diabetes duration of 14 +/- 9 years. Serum levels of hydroimidazolone were determined with a competitive immunoassay. Serum levels of hydroimidazolone were increased in nonproliferative (median, 4.50 U/mL; interquartile range, 3.69-5.77 U/mL) and proliferative retinopathy (median, 4.88 U/mL; interquartile range, 3.70-6.52 U/mL) compared with patients without retinopathy (median, 4.02 U/mL; interquartile range, 3.47-4.88 U/mL) (P = .008 and .002, respectively). There was no association between hydroimidazolone and hemoglobin A1c (r = 0.04, P = .57). In addition, patients with proliferative retinopathy and a relatively short known duration of diabetes, that is, less than the median of 14 years, had increased serum levels of hydroimidazolone (median, 6.91 U/mL; interquartile range, 4.70-8.91 U/mL) compared with those with nonproliferative retinopathy (median, 4.34; interquartile range, 3.86-5.53U/mL, P = .015). Serum levels of hydroimidazolone are increased in type 2 diabetic patients with retinopathy. This association is independent of hitherto known associated factors, such as hemoglobin A1c.
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Affiliation(s)
- Dag Sigurd Fosmark
- Diabetes Research Centre, Aker and Ullevål University Hospitals, N-0514 Oslo, Norway.
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