PI-RADS Prostate Imaging – Reporting and Data System: 2015, Version 2

Abstract

The Prostate Imaging - Reporting and Data System Version 2 (PI-RADS™ v2) is the product of an international collaboration of the American College of Radiology (ACR), European Society of Uroradiology (ESUR), and AdMetech Foundation. It is designed to promote global standardization and diminish variation in the acquisition, interpretation, and reporting of prostate multiparametric magnetic resonance imaging (mpMRI) examination, and it is based on the best available evidence and expert consensus opinion. It establishes minimum acceptable technical parameters for prostate mpMRI, simplifies and standardizes terminology and content of reports, and provides assessment categories that summarize levels of suspicion or risk of clinically significant prostate cancer that can be used to assist selection of patients for biopsies and management. It is intended to be used in routine clinical practice and also to facilitate data collection and outcome monitoring for research.

Current Utilization and Acceptance of Multiparametric MRI in the Diagnosis of Prostate Cancer. A Regional Survey

“…To date, however, there has been a lack of qualitative reproducibility that would make a prostate MRI finding more reliable for the referring physician [24]. The joint recommendations of the American College of Radiology (ACR), the European Society of Urogenital Radiology (ESUR) and the AdmeTech Foundation regarding performance of MP-MRI of the prostate as well as standardized findings (PI-RADS v2) are an important step towards an international standard which can strengthen the trust of the referring physicians in the method [12]. In the German-speaking realm, one step in this direction includes, among other things, current standardized implementation and protocol recommendations for prostate MRI [25].…”

“…In 2015 in the course of increasing standardization of MRI of the prostate, a collaboration of the American College of Radiology (ACR), the European Society of Urogenital Radiology (ESUR) and the Adme Tech Foundation published joint recommendations for performing MP-MRI of the prostate as well as standardized reporting (Prostate Imaging -Reporting and Data System Version 2 -PI-RADS v2) [12].…”

Natural history of prostatic lesions on serial multiparametric magnetic resonance imaging

“…All scans were re-reviewed and evaluated by a single radiologist with prostate MRI experience, for 2 key purposes: (1) to ensure consistent results given that operatordependent heterogeneity may exist, and (2) to take into consideration the PI-RADs 2.0 scoring system that was established in November 2014 (11). Lesions from the first scan were identified as either index, or non-index lesions.…”

MRT der Prostata: Empfehlungen zur Vorbereitung und Durchführung

“…To reduce these artifacts, patients should be required to empty the rectum and bladder prior to examination. If significant air in the rectum is detected in the planning sequences, decompression of the rectum via a rectal tube can be advantageous [12]. Enemas or laxatives should not be administered since these increase intestinal peristalsis and can intensify artifacts.…”

“…Nevertheless, T2w imaging is the most important sequence for detecting carcinomas in the transitional zone. The differentiation criterion here is primarily the architectural distortion followed by size [12]. Morphological T2w sequences are decisive for determining the location of focal lesions.…”