Pd44-10 Correlation Between Diameter of Prostate Cancer Foci on Multiparametric Prostate Mri and Whole Mount Histopathology: Stratified by Pi-Rads and Gleason Score

In-Bore 3-T MR-guided Transrectal Targeted Prostate Biopsy: Prostate Imaging Reporting and Data System Version 2–based Diagnostic Performance for Detection of Prostate Cancer

“…By using 3-T multiparametric prostate MR imaging targets with PI-RADS version 2 categories 3-5 as a cutoff threshold, the respective sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for PCa were 59 of 72 targets (81.9%), 21 …”

“…The lower performance in the peripheral zone (vs the transition zone) may be due to change in algorithm, which sets a size threshold of at least 1.5 cm for both T2-weighted imaging and DWI for a target to considered category 5. It is reported that MR imaging leads to underestimation of tumor volume and diameter at final pathology assessment (20,21). Thus, setting a lower size threshold and reconsidering T2-weighted imaging for the peripheral zone may improve overall performance for the next edition of PI-RADS.…”