PD11-11 DO PATIENTS WHO UNDERGO MULTIPARAMETRIC MRI FOR PROSTATE CANCER NEED ANY OTHER IMAGING? RESULTS FROM A STATEWIDE COLLABORATIVE

You have accessJournal of UrologyImaging/Radiology: Uroradiology II1 Apr 2017PD11-11 DO PATIENTS WHO UNDERGO MULTIPARAMETRIC MRI FOR PROSTATE CANCER NEED ANY OTHER IMAGING? RESULTS FROM A STATEWIDE COLLABORATIVE Justin Drobish, Ji Qi, Tae Kim, James Montie, Sabrina Noyes, Dinesh Telang, Brian Lane, and Michigan Urological Surgery Improvement Collaborative Justin DrobishJustin Drobish More articles by this author , Ji QiJi Qi More articles by this author , Tae KimTae Kim More articles by this author , James MontieJames Montie More articles by this author , Sabrina NoyesSabrina Noyes More articles by this author , Dinesh TelangDinesh Telang More articles by this author , Brian LaneBrian Lane More articles by this author , and Michigan Urological Surgery Improvement Collaborative More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.587AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Multiparametric MRI (mpMRI) has an increasing role in prostatic disease management. For prostate cancer (PCa), guidelines typically recommend CT abdomen/pelvis (CT) and bone scan for high-risk patients, but MRI may provide similar information about lymph node (LN) and bony metastases. We investigated the use of mpMRI, CT, and bone scan in PCa patients within the Michigan Urological Surgery Improvement Collaborative (MUSIC) registry. METHODS Imaging outcomes entered into the MUSIC registry between June and October 2016 were reviewed. Of 402 patients receiving mpMRI, 46 and 94 also had CT and bone scan, respectively, within 90 days of MRI. mpMRI detection rates of LN and bone metastases were compared to CT and bone scan. Positive LNs were defined as greater than 8mm in the short axis. Clinical correlation of PCa metastases was reviewed for all patients and pathologic confirmation was available for select patients. RESULTS Of the 402 patients undergoing mpMRI after PCa diagnosis, 11.4% received CT. Bone scan was performed for staging in 23.4% of patients undergoing mpMRI, including 4.2%, 14.4%, and 81.0% of patients with low, intermediate, and high-risk PCa, respectively. LN suspicious for metastases were identified on 2.7% of MRI and 4.3% of CT. No patients had LN identified on both CT and MRI; 2 and 1 patients had LN identified only on CT or MRI, respectively. Bone metastases were identified on 2.7% of MRI and 7.4% of patients undergoing bone scan. For patients having both MRI and bone scan, 2 of 6 patients with suspicious bone lesions (33%) and 1 of 4 (25%) with indeterminate lesions on mpMRI were confirmed on bone scan. Of 7 patients with positive bone scans, 4 had mpMRI without suspicious bone lesions. CONCLUSIONS mpMRI performs similar to CT for the detection of LN metastases, and can detect bone metastases. Literature suggests that only 5% of patients with bone metastases have lesions only outside of the area studied with MRI (Woo et al. J AJR 2016; 206:1156-63). MRI′s ability to stage prostate cancer patients in place of CT and possibly bone scan shows promise. Our study, though limited by a small number of subjects, suggests that MRI performed by diverse practices and reviewed by multiple radiologists may not have the same results. A comparison of MRI versus CT on a larger scale may confirm our findings. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e210-e211 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Justin Drobish More articles by this author Ji Qi More articles by this author Tae Kim More articles by this author James Montie More articles by this author Sabrina Noyes More articles by this author Dinesh Telang More articles by this author Brian Lane More articles by this author Michigan Urological Surgery Improvement Collaborative More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...