Table 9. PI-RADS scoring confusion matrix, McNemar test for NCCN Guidelines risk higher than unfavorable intermediate risk.
| PI-RADS scores | Reader 1 | Reader 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DL1 | DL2 | DL1 | DL2 | ||||||||
| PI-RADS <4 | PI-RADS ≥4 | PI-RADS <4 | PI-RADS ≥4 | PI-RADS <4 | PI-RADS ≥4 | PI-RADS <4 | PI-RADS ≥4 | ||||
| CDWI | |||||||||||
| PI-RADS <4 | 1 | 6 | 2 | 6 | 3 | 8 | 5 | 6 | |||
| PI-RADS ≥4 | 0 | 47 | 0 | 46 | 1 | 42 | 0 | 43 | |||
| P value | 0.03 | 0.03 | 0.04 | 0.03 | |||||||
Data are given as the number of cases. P values are provided by Mcnemar test for marginal homogeneity between DL1–2 and CDWI for each reader. PI-RADS, Prostate Imaging-Reporting and Data System; NCCN, National Comprehensive Cancer Network; DL1, DWI with iPAT2 using DLR; DL2, DWI with iPAT3 using DLR; CDWI, conventional diffusion weighted image; DWI, diffusion weighted imaging; DLR, deep learning reconstruction; iPAT2, acceleration factor 2; iPAT3, acceleration factor 3.