The use of an artificial neural network in the evaluation of the extracorporeal shockwave lithotripsy as a treatment of choice for urinary lithiasis.

Autor:	Tsitsiflis A; Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Kiouvrekis Y; Department of Public and Integrated Health, University of Thessaly, Karditsa, Greece.; Business School, University of Nicosia, Nicosia, Cyprus., Chasiotis G; Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Perifanos G; Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Gravas S; Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Stefanidis I; Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Tzortzis V; Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece., Karatzas A; Department of Urology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece.
Jazyk:	angličtina
Zdroj:	Asian journal of urology [Asian J Urol] 2022 Apr; Vol. 9 (2), pp. 132-138. Date of Electronic Publication: 2021 Sep 30.
DOI:	10.1016/j.ajur.2021.09.005
Abstrakt:	Objective: Artificial neural networks (ANNs) are widely applied in medicine, since they substantially increase the sensitivity and specificity of the diagnosis, classification, and the prognosis of a medical condition. In this study, we constructed an ANN to evaluate several parameters of extracorporeal shockwave lithotripsy (ESWL), such as the outcome and safety of the procedure. Methods: Patients with urinary lithiasis suitable for ESWL treatment were enrolled. An ANN was designed using MATLAB. Medical data were collected from all patients and 12 nodes were used as inputs. Conventional statistical analysis was also performed. Results: Finally, 716 patients were included in our study. Univariate analysis revealed that diabetes and hydronephrosis were positively correlated with ESWL complications. Regarding efficacy, univariate analysis revealed that stone location, stone size, the number and density of shockwaves delivered, and the presence of a stent in the ureter were independent factors of the ESWL outcome. This was further confirmed when adjusted for sex and age in a multivariate analysis. The performance of the ANN at the end of the training state reached 98.72%. The four basic ratios (sensitivity, specificity, positive predictive value, and negative predictive value) were calculated for both training and evaluation data sets. The performance of the ANN at the end of the evaluation state was 81.43%. Conclusion: Our ANN achieved high score in predicting the outcome and the side effects of the ESWL treatment for urinary stones. Competing Interests: The authors declare no conflict of interest. (© 2022 Editorial Office of Asian Journal of Urology. Production and hosting by Elsevier B.V.)
Databáze:	MEDLINE
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