title: Prostate Imaging Reporting and Data System (PI-RADS), Version 2: A Critical Look.
abstract: OBJECTIVE
  The purpose of this article is to highlight the potential challenges associated with the Prostate Imaging Reporting and Data System, version 2 (PI-RADS v2), and to offer, when possible, suggestions and ideas for improvement.
  
  
  CONCLUSIONS
  PI-RADS v2 offers clear improvements to its earlier version and will greatly benefit the prostate MRI community. Nonetheless, caution remains on the basis of early user experience, and potential ambiguities and gaps of PI-RADS v2 are noted. Continued data-driven clarification and refinement of the guidelines will be invaluable for PI-RADS v2 to achieve its goal of improving patient care.
authors.affiliation: 1 Department of Radiology, Center for Biomedical Imaging, New York University School of Medicine, New York University Langone Medical Center, 660 First Ave, 3rd Fl, New York, NY 10016.
authors.forename: Andrew B
authors.initials: AB
authors.lastname: Rosenkrantz
authors.affiliation: 2 Department of Radiology, University of Chicago, Chicago, IL.
authors.forename: Aytekin
authors.initials: A
authors.lastname: Oto
authors.affiliation: 3 Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD.
authors.forename: Baris
authors.initials: B
authors.lastname: Turkbey
authors.affiliation: 4 Department of Radiology, University of California, San Francisco, San Francisco, CA.
authors.forename: Antonio C
authors.initials: AC
authors.lastname: Westphalen
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging*; D011873:Radiology Information Systems
keywords: MRI; PI-RADS; Prostate Imaging Reporting and Data System; guidelines; prostate biopsy; prostate cancer