PIRADS
Pronunciation: PIE-rads
Also written as: PIRADS — Prostate Imaging Reporting and Data System
Prostate Imaging Reporting and Data System standardizing prostate MRI interpretation and reporting.
Full Definition
The Prostate Imaging Reporting and Data System (PIRADS) is a structured reporting framework that standardizes the interpretation and reporting of multiparametric MRI of the prostate. PIRADS assigns scores from 1-5 based on the likelihood that a clinically significant cancer is present, with higher scores indicating greater suspicion. The system evaluates T2-weighted imaging, diffusion-weighted imaging, and dynamic contrast enhancement patterns. PIRADS facilitates communication between radiologists and urologists, guides biopsy decisions, and helps standardize prostate cancer detection across institutions. Regular updates to PIRADS incorporate evolving evidence and technical advances.
Usage
Usage note: Hyphenated form PI-RADS is also acceptable.
In Context
- "The peripheral zone lesion was assigned a PIRADS 4 score, warranting targeted biopsy." — Prostate MRI report
- "PIRADS assessment showed multiple low-suspicion areas without definitive malignant features." — Screening imaging report