title: [PI-RADS classification: structured reporting for MRI of the prostate].
abstract: OBJECTIVE
  To flesh out the ESUR guidelines for the standardized interpretation of multiparametric magnetic resonance imaging (mMRI) for the detection of prostate cancer and to present a graphic reporting scheme for improved communication of findings to urologists.
  
  
  METHODS
  The ESUR has recently published a structured reporting system for mMRI of the prostate (PI-RADS). This system involves the use of 5-point Likert scales for grading the findings obtained with different MRI techniques. The mMRI includes T2-weighted MRI, diffusion-weighted imaging, dynamic contrast-enhanced MRI, and MR spectroscopy. In a first step, the fundamentals of technical implementation were determined by consensus, taking into account in particular the German-speaking community. Then, representative images were selected by consensus on the basis of examinations of the three institutions. In addition, scoring intervals for an aggregated PI-RADS score were determined in consensus.
  
  
  RESULTS
  The multiparametric methods were discussed critically with regard to implementation and the current status. Criteria used for grading mMRI findings with the PI-RADS classification were concretized by succinct examples. Using the consensus table for aggregated scoring in a clinical setting, a diagnosis of suspected prostate cancer should be made if the PI-RADS score is 4 or higher (≥ 10 points if 3 techniques are used or ≥ 13 points if 4 techniques are used). Finally, a graphic scheme was developed for communicating mMRI prostate findings.
  
  
  CONCLUSIONS
  Structured reporting according to the ESUR guidelines contributes to quality assurance by standardizing prostate mMRI, and it facilities the communication of findings to urologists.
authors: Abteilung für Radiologie, Deutsches Krebsforschungszentrum, Heidelberg. m.roethke@dkfz.de
authors: M
authors: M
authors: Röthke
authors: D
authors: D
authors: Blondin
authors: H-P
authors: HP
authors: Schlemmer
authors: T
authors: T
authors: Franiel
mesh_terms: D001706:Biopsy; D032921:Consensus; D003299:Cooperative Behavior; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods* / Q000592:standards*; D019983:Guideline Adherence; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods* / Q000592:standards*; D033183:Interdisciplinary Communication; D008279:Magnetic Resonance Imaging / Q000379:methods* / Q000592:standards*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards*; D008297:Male; D009389:Neovascularization, Pathologic / Q000145:classification / Q000175:diagnosis / Q000473:pathology; D011467:Prostate / Q000098:blood supply / Q000473:pathology; D011470:Prostatic Hyperplasia / Q000145:classification* / Q000175:diagnosis*; D011471:Prostatic Neoplasms / Q000098:blood supply / Q000145:classification* / Q000175:diagnosis*; D011472:Prostatitis / Q000145:classification* / Q000175:diagnosis*; D011785:Quality Assurance, Health Care / Q000592:standards*