A practical primer on PI-RADS version 2: a pictorial essay


Multiparametric magnetic resonance imaging has become an established method for evaluating the prostate for clinically significant prostate adenocarcinoma. Criteria have been developed for categorizing MRI findings, the most frequently used of which is the PI-RADS system. The PI-RADS V2 document provides separate image interpretation and clinical grading sections. Within this article we give an overview of the integrated, algorithmic way, we approach prostate MRI, show images corresponding to each PI-RADS category, and provide several illustrative cases.

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Correspondence to Gary Lloyd Horn Jr..

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None of the authors reported conflicts of interest for this paper.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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This is a review article/pictorial essay, and informed consent was not needed since only images which were already obtained were used.

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Horn, G.L., Hahn, P.F., Tabatabaei, S. et al. A practical primer on PI-RADS version 2: a pictorial essay. Abdom Radiol 41, 899–906 (2016).

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  • Prostate
  • Magnetic resonance imaging
  • Prostatic neoplasms