Related Experiment Video
Updated: Feb 21, 2026
06:08
A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
Published on: March 21, 2025
1.6K
Optimising preoperative risk stratification tools for prostate cancer using mpMRI.
Lars A R Reisæter1,2, Jurgen J Fütterer3, Are Losnegård4,5
1Department of Radiology, Haukeland University Hospital, Jonas Liesvei, N-5021, Bergen, Norway. lars.reisaeter@helse-bergen.no.
European Radiology
|October 8, 2017
Summary
Multiparametric MRI (mpMRI) features, including apparent diffusion coefficient (ADC) and extraprostatic extension (EPE), significantly improve risk stratification for prostate cancer (PCa) biochemical recurrence (BCR). This enhances preoperative risk estimation and treatment selection for PCa patients.
Area of Science:
- Urology
- Radiology
- Oncology
Background:
- Accurate preoperative risk stratification is crucial for managing prostate cancer (PCa).
- Current tools like CAPRA and D'Amico may not fully capture all relevant prognostic factors.
- Multiparametric MRI (mpMRI) offers detailed imaging insights into tumor characteristics.
Purpose of the Study:
- To enhance preoperative risk stratification for PCa by integrating mpMRI features into existing tools.
- To evaluate the impact of mpMRI-derived data on predicting biochemical recurrence (BCR).
Main Methods:
- Analysis of 807 robot-assisted radical prostatectomy cases (2010-2015), with 591 eligible for BCR analysis.
- Stepwise backward likelihood and penalized Cox cross-validation identified significant BCR predictors, including mpMRI features.
- mpMRI features were integrated into image-adjusted (IA) risk models, evaluated using ROC, survival, and decision curve analyses.
Main Results:
- Apparent diffusion coefficient (ADC) and radiological extraprostatic extension (rEPE) from mpMRI were significant BCR predictors.
- IA models reclassified over 20% of intermediate-risk patients to low-risk, reducing estimated BCR risk from ~5% to 1.1%.
- IA models demonstrated improved prognostic performance with better survival curve separation.
Conclusions:
- Integrating ADC and rEPE from mpMRI improves preoperative risk estimation for PCa BCR.
- mpMRI enhances risk stratification, improving differentiation between risk groups.
- Preoperative mpMRI aids urologists in selecting optimal treatment strategies for PCa.
