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Table 2 The accuracy of the model for each urinary tract stone location

From: Computer-aided diagnosis with a convolutional neural network algorithm for automated detection of urinary tract stones on plain X-ray

Urinary tract stone location Number of TP Number of FP Number of FN Sensitivity PPV
Kidney 95 72 11 0.896 0.569
Proximal ureter 99 14 8 0.925 0.876
Mid-ureter 13 13 9 0.591 0.500
Distal ureter 24 19 6 0.800 0.558
All locations 231 118 34 0.872 0.662
  1. TP true positive, FP false positive, FN false negative, PPV positive predictive value