Prostate Cancer Early Detection Using Serial MRI Examinations

Inclusion Criteria: * Men aged over 18 years * Men with an estimated life expectancy of more than 10 years * Biopsy-naïve men * PSA level ≤ 20 ng/ml * Presence, on the first multiparametric prostate MRI, of a PIRADS 3-5 lesion confirmed by local rereading if the MRI was performed outside the center * MRI of sufficient quality (PI-QUAL score 2-3) * PIRADS 3 lesion with a PSA density \<0.15 ng/ml/ml * No signs of extracapsular extension or seminal vesicle invasion (MRI stage T2 confirmed by local rereading if MRI performed outside the center) * No suspicious lymph node (confirmed by local rereading if MRI performed outside the center) * Patient is insured (affiliated with the national health insurance system or benefiting from such coverage) * Signed informed consent form Exclusion Criteria: * Men already under surveillance for a known MRI lesion (except if the previous MRI was performed less than 6 months ago) * Known mutation in DNA repair genes or suggestive family history * PIRADS 3 lesion with PSA density \< 0.15 ng/ml/ml * PIRADS 5 lesion with suspected extracapsular extension or seminal vesicle invasion * Suspicion of lymph node involvement * Multiparametric prostate MRI showing a PIRADS 1-2 lesion * Use of treatments that may modify the appearance of MRI lesions: 5-alpha reductase inhibitors, hormone therapy * Patient with severe renal insufficiency (GFR \< 30 ml/min/1.73 m²) * Contraindication to gadolinium injection * Contraindication to prostate biopsy * Vulnerable persons (covered by Articles L1111-6 to L1111-8 of the French Public Health Code)