ArticleBJUI compass2026
Prostate MRI vascular markers and erectile function after nerve-sparing prostatectomy.
Article in BJUI compass, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
8 authors.
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Abstract
Objectives: To determine whether preoperative multiparametric magnetic resonance imaging (mpMRI)-derived vascular markers are associated with baseline and postoperative erectile function (EF) and change in EF in men undergoing bilateral nerve-sparing robot-assisted radical prostatectomy (RARP). Patients and Methods: A secondary retrospective imaging analysis was undertaken using prospectively collected cohort data. Men undergoing bilateral nerve-sparing RARP with a preoperative International Index of Erectile Function-erectile function domain score (IIEF-6) and preoperative mpMRI incorporating dynamic contrast-enhanced sequences were included. MRI-detected accessory pudendal artery (APA), prostate enhancement ratio (PER) and corporal enhancement ratio (CER) were assessed by two expert uro-radiologists. Associations with EF outcomes were examined using correlation analyses and univariable and multivariable linear regression. Results: Seventy-one patients (mean age 60 years) met inclusion criteria; APA was identified in 31 (43.6%). APA presence was associated with higher baseline IIEF-6 scores (mean 24.1 vs. 20.0, Conclusion: Preoperative mpMRI-derived vascular markers, particularly APA identification, independently correlate with baseline EF in men undergoing BNS RARP, supporting a contributory vascular component in post-prostatectomy ED. Prospective studies are warranted to determine whether intraoperative vascular preservation strategies, guided by preoperative MRI vascular mapping, influence functional recovery and can be integrated into surgical planning pathways.
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