Prostate MRI: practical guidelines for interpreting and reporting according to PI-RADS version 2.1

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Prostate cancer is the most common non-cutaneous cancer in men.
• Multiparametric MRI (mpMRI) has become crucial in prostate cancer management.
• Increasing precision and standardization enhance mpMRI's role.

Purpose of the Study:

• To review PI-RADS version 2.1 concepts for prostate cancer assessment.
• To provide practical guidance on mpMRI interpretation.
• To highlight common pitfalls and local spread evaluation.

Main Methods:

• Review of PI-RADS v2.1 guidelines.
• Practical approach to interpreting prostate mpMRI.
• Emphasis on prerequisites and findings interpretation.
• Criteria for assessing local spread probability.

Main Results:

• PI-RADS 2.1 standardizes the estimation of significant prostate tumor probability and location.
• Identifies benign findings that may mimic malignancy.
• Provides criteria for evaluating local spread potential.
• Highlights the importance of structured reporting.

Conclusions:

• Standardized mpMRI interpretation using PI-RADS 2.1 is essential for accurate prostate cancer management.
• Understanding potential diagnostic challenges improves clinical decision-making.
• Structured reporting of mpMRI findings facilitates optimal patient care.