MP08-06 COMBINATION OF RGB AND NARROW BAND IMAGING FOR DISCRIMINATION OF NON-MUSCLE INVASIVE BLADDER CANCER

Abstract

You have accessJournal of UrologyImaging/Radiology: Uroradiology I1 Apr 2017MP08-06 COMBINATION OF RGB AND NARROW BAND IMAGING FOR DISCRIMINATION OF NON-MUSCLE INVASIVE BLADDER CANCER Kwang Suk Lee, Kyo Chul Koo, Do Kyung Kim, Jongsoo Lee, Jong Won Kim, Jae Yong Jeong, Sung Ku Kang, and Byung Ha Chung Kwang Suk LeeKwang Suk Lee More articles by this author , Kyo Chul KooKyo Chul Koo More articles by this author , Do Kyung KimDo Kyung Kim More articles by this author , Jongsoo LeeJongsoo Lee More articles by this author , Jong Won KimJong Won Kim More articles by this author , Jae Yong JeongJae Yong Jeong More articles by this author , Sung Ku KangSung Ku Kang More articles by this author , and Byung Ha ChungByung Ha Chung More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.293AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES We evaluated the use of white light imaging (WLI) and narrow-band imaging (NBI) cystoscopy for the detection of bladder cancer. Additional objectives were to provide summary RGB data and to determine a relationship between cancer detection and tumor characteristics. METHODS A prospective double blinded controlled study of NBI was conducted in 102 consecutive patients with definite or suspected bladder cancer after WLI and NBI cystoscopy by 2 urologists. Transurethral targeted biopsies were performed and the histologic outcomes were compared. We analyzed average RGB color on 3x3 pixel of the randomized 3 other points for abnormal lesions and grossly normal in bladder. RESULTS A total of 172 biopsies for suspicious lesions (WLI+/NBI+=145, WLI-/NBI+=27) were taken. The percentage of malignancies in the sites identified only by NBI was 63.0% (17 sites).Of 15 CIS sites, 53.3% was detected by only NBI. The positive predictive value of NBI and WLI were 70.3% and 67.1%, respectively. Bladder washing cytology positive (HR=3.87, p=0.002). grossly papillary feature (HR=6.80, p<0.001) average blue of lesion for WLI (HR=0.96, p=0.006) were significant risk factors for detection of bladder cancer during transurethral targeted biopsy. CONCLUSIONS NBI is a simple and effective method for identifying CIS without the need for dyes. RGB analysis for bladder wall would be helpful for discrimination bladder cancer. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e92 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Kwang Suk Lee More articles by this author Kyo Chul Koo More articles by this author Do Kyung Kim More articles by this author Jongsoo Lee More articles by this author Jong Won Kim More articles by this author Jae Yong Jeong More articles by this author Sung Ku Kang More articles by this author Byung Ha Chung More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...