The prostate imaging reporting and data system (PI-RADS) has revolutionized the use of magnetic resonance imaging (MRI) for the management of prostate cancer (PCa). The most recent version 2.1, PI-RADS v2. 1, provides specific refinements in the performance, relaxing some recommendations which were not found to be helpful, while reinforcing and clarifying others. The interpretation of T2-weighted imaging (T2WI) in the transition zone (TZ), and the overall assessment of TZ nodules, now allows for a clearer distinction between those which are clearly benign and those which might warrant tissue sampling. Additional changes also resolve discrepancies in T2WI and diffusion-weighted imaging (DWI) of the peripheral zone (PZ). PI-RADS v2.1 is a simpler, more straightforward, and more reproducible method to better communicate between physicians regarding findings on prostate MRI.
Abdominal radiology (New York). 2020 Mar 17 [Epub ahead of print]
Silvina P Dutruel, Sunil Jeph, Daniel J A Margolis, Natasha Wehrli
Department of Radiology, Weill Cornell Medicine/New York-Presbyterian, 525 E 68th St, Box 141, New York, NY, 10065, USA., Department of Radiology, Weill Cornell Medicine/New York-Presbyterian, 525 E 68th St, Box 141, New York, NY, 10065, USA. .