Performance of multiparametric MRI appears better when measured in patients who undergo radical prostatectomy
Nancy N Wang, 1 Richard E Fan, 1 John T Leppert, 1,2 Pejman Ghanouni, 3 Christian A Kunder, 4 James D Brooks, 1 Benjamin I Chung, 1 Geoffrey A Sonn 1,3 1 Department of Urology, Stanford University School of Medicine, Stanford, CA, USA; 2 Veterans Affairs, Palo Alto Health Care System, Palo Alto, CA, USA; 3 Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA; 4 Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA Abstract: Utilization of pre-biopsy multiparametric MRI (mpMRI) is increasing. To optimize the usefulness of mpMRI, physicians should accurately quote patients a numerical risk of cancer based on their MRI. The Prostate Imaging Reporting and Data System (PIRADS) standardizes interpretation of mpMRI; however, reported rates of clinically significant prostate cancer (CSC) stratified by PIRADS score vary widely. While some publications use radical prostatectomy (RP) specimens as gold standard, others use biops...