Table 5.

Repeatability of volume, mean apparent diffusion coefficient (ADC) value of clinically significant prostate cancer (csPCa) lesion in terms of intra-class correlation coefficient (ICC(3,1)) for ground truth delineations, and segmentation maps obtained by U-Net in the hold-out test set (S_test) for ADC_m of three different b value settings (a) B_4b900 (0, 300, 500, 900 s/mm²), (b) B_4b2000 (0, 900, 1100, 2000 s/mm²), and (c) B_2b1300 (0 and 1300 s/mm²). N = 112 patients scheduled for prostatectomy underwent two prostate MR examinations (S_A and S_B) performed on the same day approximately 15 min apart. The scans, S_A and S_B, were divided into training set (A_train and B_train), N = 78, and test set (A_test and B_test) N = 34

Repeatability ICC (95% confidence interval)	B4b900		B4b2000		B2b1300
	Volume	Mean ADC value	Volume	Mean ADC value	Volume	Mean ADC value
Ground truth delineations	0.92 (0.86–0.96)	0.86 (0.77–92)	0.92 (0.86–0.96)	0.89 (0.81–0.93)	0.92 (0.86–0.96)	0.98 (0.97–0.99)
U-Net segmentations (DA and DB)	0.89 (0.79–0.94)	0.87 (0.69–0.95)	0.92 (0.84–0.96)	0.87 (0.71–0.95)	0.89 (0.79–0.94)	0.84 (0.63–0.93)