Accuracy of ARFI elastography in the differentiation of cataract stages in dogs

Autor: Thais G.M. Abreu, Marjury C. Maronezi, Ricardo A.R. Uscategui, Fabiana L. Rocha, Ivan R.M. Pádua, Gabriela M. Madruga, José L. Laus, Marcus A.R. Feliciano
Jazyk: English<br />Portuguese
Rok vydání: 2021
Předmět:
Zdroj: Pesquisa Veterinária Brasileira, Vol 41 (2021)
Druh dokumentu: article
ISSN: 1678-5150
DOI: 10.1590/1678-5150-pvb-6598
Popis: ABSTRACT: Objective was to evaluate the accuracy of elastography in the differentiation between normal and cataract lenses One hundred forty-five eyes of 98 dogs were divided into groups according to cataract stage. Forty-twoeyes were submitted to phacoemulsification. Biometric parameters, echogenicity and echotexture patterns of the anterior, posterior and vitreous chambers, lens and retina-choroid-sclera complexes were evaluated by ocular ultrasound in modes A and B. Deformability, and color (blue color = indicated less rigid structures, color red = more rigid structures) of the lenses were evaluated by the elastogram. The shear wave velocity (SWV; m/s) was calculated in three regions of the lens, both in the cortex and in the nucleus. The SWV of nucleus was statistically different between the normal lenses and with cataracts, and between the stages of cataract (P
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