Abstract
Prostate imaging and interpretation is based on prostate imaging reporting and data system version 2 (PI-RADS™ v2) providing clinical guidelines for multiparametric magnetic resonance imaging (mpMRI) of the prostate. PI-RADS™ v2 aims to promote global standardisation, to diminish variation in the acquisition, interpretation and reporting of prostate mpMRI examinations and to improve detection, localisation, and risk stratification in patients with suspected cancer in treatment naïve prostate glands. It does not address detection of recurrence, progression during active surveillance and evaluation of other parts of the body.PI-RADS™ v2 improves and standardises communication between radiologists and urologists to detect or exclude the presence of significant prostate cancer with a high likelihood. Findings on mpMRI are assessed on a 5-point category scale based on the probability that a combination of findings on T2-weighted (T2w) sequences, diffusion-weighted MRI (DWI) and dynamic contrast-enhanced MRI (DCE-MRI) correlates with the presence of a clinically significant prostate cancer at a particular location. PI-RADS assessment categories range from 1 to 5 with 5 being most likely to represent clinically significant prostate cancer. The dominant sequence to detect prostate cancer in the peripheral zone is DWI, whereas for tumour detection in the transition zone T2w is the most important sequence. DCE-MRI has been attributed a minor role and only qualitative assessment with presence or absence of focal enhancement is suggested. Up to four suspicious lesions of category 3, 4 and 5 are assigned on a sector map and the index lesion should be identified.
Highlights
Prostate imaging and interpretation is based on prostate imaging reporting and data system version 2 (PI-RADSTM v2) providing clinical guidelines for multiparametric magnetic resonance imaging of the prostate
Findings are described according to PI-RADSTM v2 separately for peripheral zone and transition zone
Prostate cancer imaging is based on multiparametric magnetic resonance imaging (mpMRI), consisting of T2w sequences, diffusion-weighted MRI (DWI) and dynamic contrast-enhanced MRI (DCE-MRI)
Summary
Prostate imaging and interpretation is based on prostate imaging reporting and data system version 2 (PI-RADSTM v2) providing clinical guidelines for multiparametric magnetic resonance imaging (mpMRI) of the prostate. 2. Isointense signal of the peripheral zone on the high b-value DW image with an indistinct linear hypointense lesion on the ADC map (arrow) with corresponding T2w hypointense signal. 3. Isointense/mildly hyperintense signal of the peripheral zone on the high b-value DW image and with a focal mildly/moderately hypointense indistinct lesion on the ADC map (arrow).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.