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עמוד בית
Wed, 29.05.24

ORIGINAL ARTICLES

IMAJ | volume 25

Journal 9, September 2023
pages: 601-607

Age-related Changes of the Prostate on Magnetic Resonance Imaging: Quantitative and Qualitative Evaluation in a Screening Cohort of BRCA Mutation Carriers

1 Department of Diagnostic Imaging, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel 2 Department of Urology, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel 3 Department of Pathology, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel 4 Department of Diagnostic Radiology, Shaare Zedek Medical Center, affiliated with the Hebrew University of Jerusalem, Israel 5 Tel Aviv Sourasky Medical Center, Tel Aviv, Israel

Summary

Background:

Age-related changes in multiparametric magnetic resonance imaging (mpMRI) of the prostate have been reported in the general population but not in screening cohorts.

Objectives:

To evaluate age-related changes on prostatic mpMRI in a screening cohort of BRCA1/2 mutation carriers.

Methods:

Asymptomatic BRCA1/2 mutation carriers underwent mpMRI as part of a screening program. All included patients were followed for 3 years with no evidence of prostate cancer. mpMRIs were retrospectively evaluated by two abdominal radiologists for peripheral zone (PZ) patterns on T2 (homogenous hyperintensity, wedge-shaped hypointensities, patchy hypointensities, or diffuse hypointensity), and transition zone (TZ) pattern on T2 (homogenous, heterogeneous, nodular). Apparent diffusion coefficient (ADC) values of PZ and TZ were measured. Statistical analysis was performed using a predefined age cutoff of 50 years old.

Results:

Overall, 92 patients were included: 38 in the younger age group (40–49 years) and 54 in the older age group (50–69 years). PZ homogenous hyperintensity and wedge-shaped hypointensities were more common in the older patients, whereas diffuse hypointensity was more common in younger patients (P < 0.001 for both readers) with substantial inter-reader agreement between the readers (kappa=0.643). ADC values were lower in young patients in the PZ (P < 0.001) and TZ (P = 0.003).

Conclusions:

Age-related differences in mpMRI were validated in BRCA mutation carriers. As some features overlap with prostatic carcinoma, awareness is crucial, specifically to diffuse T2 hypointensities of the PZ and lower ADC values in the PZ and TZ, which are more common in younger patients.

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