The longitudinal effect of ejaculation on seminal vesicle fluid volume and whole-prostate ADC as measured on prostate MRI.

ABSTRACT:

Objective

To prospectively investigate the longitudinal effect of ejaculatory abstinence on MRI-measured seminal vesicle (SV) volume and whole-prostate ADC over consecutive days.

Methods

15 healthy male volunteers (mean 35.9 years, range 27-53) underwent 3-T MRI at baseline and 1, 2 and 3 days post-ejaculation. Prostate and SV volumes were derived by volume segmentation and whole-gland apparent diffusion coefficient (ADC) values calculated. A mixed-effects linear regression compared ADC values and prostate/seminal vesicle volumes in each volunteer between studies in a pairwise manner.

Results

All subjects completed the four MRIs. Mean prostate volume was 22.45 cm³ (range 13.04-31.21 cm³), with no change between the four studies (p = 0.89-0.99). 1

SUBMITTER: Barrett T 

PROVIDER: S-EPMC5674119 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature