Prospective Validation of Hybrid Multidimensional MRI for Prostate Cancer Detection using Targeted Biopsy: Comparison with PIRADS

Motivation: Quantitative tools may improve PCa diagnosis Goal(s): The purpose of this study is to evaluate the effectiveness of an automated HM-MRI-based tool to prospectively identify targets before MR-US fusion biopsy in comparison with PIRADS based evaluation by expert radiologists. Approach: Patients underwent 3T mpMRI along with HM-MRI. Patients received 12-core TRUS-guided sextant random biopsy. Additional biopsy targets selected by radiologist (≥PI-RADS 3) and suspected PCa based on HM-MRI were biopsied, using a Uronav MR-US fusion biopsy device. Results: The diagnostic performance of HM-MRI for diagnosing clinically significant cancers (≥Gleason 3+4), was either higher than, or on par with that of mpMRI. Impact: HM-MRI provides automated, quantitative image interpretation, standardized image acquisition, and reproducible results that improves MR-US fusion biopsy by providing more reliable detection of csPCa compared to PIRADS based evaluation by expert radiologists and potentially reduce the number of unnecessary biopsies.