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2023, Number 1

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Rev Med UAS 2023; 13 (1)

Diagnosis and classification of diabetic retinopathy using ultra-wide field fundus imaging, comparing Optos® and Clarus 700® systems

García-Medina KA, Romo-García E

Language: Spanish
References: 23
Page: 33-44
PDF size: 233.49 Kb.


ABSTRACT

Objective: to determine the concordance in the diagnosis and classification of diabetic retinopathy using ultra-wide field fundus images, comparing the Optos® and Clarus 700® systems. Materials and methods: a comparative, descriptive, prospective and crosssectional study was carried out in which 144 eyes of 77 patients (41 men and 36 women) were included to estimate the K (kappa) concordance coefficient with a confidence of 95%. Results: Cohen's Kappa coefficient obtained was .846, which translates as very good agreement between the Optos® and Clarus 700® systems in the diagnosis and classification of diabetic retinopathy using ultrawide field fundus images. Conclusions: both ultra-wide field fundus imaging systems proved to be similar in the diagnosis and classification of diabetic retinopathy; however, Optos® allowed for larger fundus images than Clarus 700®; while Clarus 700® produced fewer artifacts and provided more detailed fundus images. There is no record of previous studies that compare both ultra-wide field systems that have been carried out in Mexico, which allows using the information obtained as a basis for subsequent studies..


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