Split renal function in hydronephrosis

Article DOIhttps://doi.org/10.1016/j.urology.2025.04.009
ObjectiveTo predict differential renal function <40% in unilateral hydronephrosis using urinary tract ultrasound
AI ApproachRandom forest, logistic regression, SVM
Data Source(s)Single institutional series (802 patients)
Model InputGender, side, age, renal pelvis anterior-posterior diameter (APD), upper calyx dilation, renal length ratio
Model OutcomeDecreased split renal function (<40%)
Model MetricsSVM (best model): AUC 0.94, sensitivity 90%, specificity 81%
Model UsabilityDataset available upon request to authors.

AI = Artificial intelligence, SVM = Support vector machine, AUC = Area under the receiver-operator characteristic

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