Optimized Artificial Intelligence for Enhanced Ectasia Detection Using Scheimpflug-Based Corneal Tomography and Biomechanical Data - 02/06/23
, Aydano P. Machado c, d, be, Edileuza Leão d, f, João Marcelo G. Lyra d, g, Marcella Q. Salomão b, c, d, Louise G. Pellegrino Esporcatte b, c, d, João B.R. da Fonseca Filho a, b, Erica Ferreira-Meneses a, b, Nelson B. Sena a, b, Jorge S. Haddad c, Alexandre Costa Neto a, d, Gildasio Castelo de Almeida d, Cynthia J. Roberts h, Ahmed Elsheikh i, j, k, Riccardo Vinciguerra i, l, Paolo Vinciguerra m, n, Jens Bühren o, p, Thomas Kohnen p, Guy M. Kezirian e, q, Farhad Hafezi r, s, t, u, bd, Nikki L. Hafezi r, s, v, bd, Emilio A. Torres-Netto c, r, bd, Nanji Lu v, w, x, bd, David Sung Yong Kang y, Omid Kermani z, Shizuka Koh aa, Prema Padmanabhan ab, Suphi Taneri e, ac, ad, William Trattler ae, Luca Gualdi b, af, José Salgado-Borges ag, Fernando Faria-Correia b, ah, ai, Elias Flockerzi aj, Berthold Seitz aj, Vishal Jhanji ak, al, Tommy C.Y. Chan ak, Pedro Manuel Baptista am, Dan Z. Reinstein e, an, ao, ap, aq, Timothy J. Archer an, Karolinne M. Rocha ar, George O. Waring as, Ronald R. Krueger at, William J. Dupps au, av, aw, Ramin Khoramnia ax, Hassan Hashemi ay, Soheila Asgari ay, Hamed Momeni-Moghaddam az, Siamak Zarei-Ghanavati ba, Rohit Shetty bb, Pooja Khamar bb, Michael W. Belin bc, Bernardo T. Lopes b, c, d, iResumen |
Purpose |
To optimize artificial intelligence (AI) algorithms to integrate Scheimpflug-based corneal tomography and biomechanics to enhance ectasia detection.
Design |
Multicenter cross-sectional case-control retrospective study.
Methods |
A total of 3886 unoperated eyes from 3412 patients had Pentacam and Corvis ST (Oculus Optikgeräte GmbH) examinations. The database included 1 eye randomly selected from 1680 normal patients (N) and from 1181 “bilateral” keratoconus (KC) patients, along with 551 normal topography eyes from patients with very asymmetric ectasia (VAE-NT), and their 474 unoperated ectatic (VAE-E) eyes. The current TBIv1 (tomographic-biomechanical index) was tested, and an optimized AI algorithm was developed for augmenting accuracy.
Results |
The area under the receiver operating characteristic curve (AUC) of the TBIv1 for discriminating clinical ectasia (KC and VAE-E) was 0.999 (98.5% sensitivity; 98.6% specificity [cutoff: 0.5]), and for VAE-NT, 0.899 (76% sensitivity; 89.1% specificity [cutoff: 0.29]). A novel random forest algorithm (TBIv2), developed with 18 features in 156 trees using 10-fold cross-validation, had a significantly higher AUC (0.945; DeLong, P < .0001) for detecting VAE-NT (84.4% sensitivity and 90.1% specificity; cutoff: 0.43; DeLong, P < .0001) and a similar AUC for clinical ectasia (0.999; DeLong, P = .818; 98.7% sensitivity; 99.2% specificity [cutoff: 0.8]). Considering all cases, the TBIv2 had a higher AUC (0.985) than TBIv1 (0.974; DeLong, P < .0001).
Conclusions |
AI optimization to integrate Scheimpflug-based corneal tomography and biomechanical assessments augments accuracy for ectasia detection, characterizing ectasia susceptibility in the diverse VAE-NT group. Some patients with VAE may have true unilateral ectasia. Machine learning considering additional data, including epithelial thickness or other parameters from multimodal refractive imaging, will continuously enhance accuracy. NOTE: Publication of this article is sponsored by the American Ophthalmological Society.
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| Author Bio available at AJO.com. |
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| Meeting Presentation: This work was partially presented as a paper in the virtual meeting of the ASCRS (American Society of Cataract and Refractive Surgery) 2020. |
Vol 251
P. 126-142 - juillet 2023 Regresar al númeroBienvenido a EM-consulte, la referencia de los profesionales de la salud.
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