2010 LOW DOSE DUAL ENERGY FLASH TOMOGRAPHY PROTOCOL FOR THE FOLLOW UP OF URETERAL STONES

Abstract

You have accessJournal of UrologyImaging/Radiology: Uroradiology (I)1 Apr 20132010 LOW DOSE DUAL ENERGY FLASH TOMOGRAPHY PROTOCOL FOR THE FOLLOW UP OF URETERAL STONES Selcuk Keskin, Ercan Karaarslan, Ilter Tufek, Burak Argun, Cengiz Bavbek, Ali Riza Kural, and Ahmet Sahin Selcuk KeskinSelcuk Keskin Istanbul, Turkey More articles by this author , Ercan KaraarslanErcan Karaarslan Istanbul, Turkey More articles by this author , Ilter TufekIlter Tufek Istanbul, Turkey More articles by this author , Burak ArgunBurak Argun Istanbul, Turkey More articles by this author , Cengiz BavbekCengiz Bavbek Istanbul, Turkey More articles by this author , Ali Riza KuralAli Riza Kural Istanbul, Turkey More articles by this author , and Ahmet SahinAhmet Sahin Istanbul, Turkey More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2013.02.2429AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES A low dose dual energy Flash tomography protocol was developed in order to decrease radiation exposure for the follow up of ureteral stone patients. The efficiency of the protocol for detecting ureteral stones and reducing radiation exposure was assessed on 20 consecutive patients. METHODS Between july 2011 and may 2012, 20 patients who had acute renal colic were investigated with noncontrast spiral computerized tomography (CT) The control protocol consisted of a lower dose and limited section scanning. All tomographies were performed with multidetector flash CT. A dedicated technician performed control CT's according to the location of the stone. The scanning was carried out form the previous stone location to the caudal direction for a length of 5-15cm. If the stone was place in the proximal ureter additional scanning was done until the stone was seen. The demographic data, stone localization, the rate of spontenous stone passage, the length of scanning, the estimated radiation doses in mSv units were analyzed. RESULTS The mean patient age was 41.5(23-68) The mean stone size was 5.5mm. Sixteen patients had lower ureteral stone, 1 patient had mid-ureteral stone and 3 patients had upper ureteral stone. Spontenous passage was seen in 10 patients and 10 ureterorenoscopies were performed for the removal of the stone. Mean radiation exposure in the first and the control CT's were 7.46 (4.11-10.26) ve 1.15 (070-2.73) mSv respectively. Mean length of scanning in the control CT was 115mm. Overall, there was a %84 reduction in radiation exposure. (Graphic 1) In patients who didn't have spontenous passage, all stones were detected with the low dose protocol. CONCLUSIONS The low dose protocol utilizing multi-detector flash CT is an efficient method and decreases radiation exposure for the follow-up of ureteral stone disease. © 2013 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 189Issue 4SApril 2013Page: e825-e826 Advertisement Copyright & Permissions© 2013 by American Urological Association Education and Research, Inc.MetricsAuthor Information Selcuk Keskin Istanbul, Turkey More articles by this author Ercan Karaarslan Istanbul, Turkey More articles by this author Ilter Tufek Istanbul, Turkey More articles by this author Burak Argun Istanbul, Turkey More articles by this author Cengiz Bavbek Istanbul, Turkey More articles by this author Ali Riza Kural Istanbul, Turkey More articles by this author Ahmet Sahin Istanbul, Turkey More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...