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• W2044735797 abstract "You have accessJournal of UrologyImaging/Radiology: Uroradiology III1 Apr 2015MP17-06 RADIATION DOSES IN PRONE VERSUS SUPINE POSITION DURING PERCUTANEOUS NEPHROLITHOTOMY, RESULTS WITH AN ANTHROPOMORPHIC MODEL Jonathan Cloutier, Jean-Baptiste Terrasa, Luca Villa, and Olivier Traxer Jonathan CloutierJonathan Cloutier More articles by this author , Jean-Baptiste TerrasaJean-Baptiste Terrasa More articles by this author , Luca VillaLuca Villa More articles by this author , and Olivier TraxerOlivier Traxer More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2015.02.848AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Radiation exposure during urologic procedures is still of concern in the urologist's community. There is more surgeon reporting that nephrolithotomy in supine position will have less irradiation as the puncture is almost completely done under ultrasound guidance. However, the puncture on supine position can also be done completely under fluoroscopy guidance. The aim of our study was to compare the radiation dose depending on the position of the surgeon. METHODS A portable C-arm (Siemens, Siremobil Compact L) was used in standard mode (32 impulsions/seconde; 98kV and 3.8mA). Specific dosimeters have been placed for lens and extremity, and on the surgeon. Anthropomorphic models were used to reproduce the position of surgeon and patient (with same bone density than real human) during percutaneous nephrolithotomy in prone and modified supine position. Hand phantom models were placed to represent the extremities. Fluoroscopy time was 6 minutes to have a better precision, and the results are given for a fluoroscopy time of 3 minutes (more realistic). Ten percent of the fluoroscopy time is done with an angulation of 15 degrees and the rest in anteroposterior position. RESULTS The equivalent doses(ED) are given in uSV (uncertainty k=2). During the modified supine position: neck, lens, right index finger, left thumb and index finger received ED of 99 (20%), 62 (18%), 437 (10%), 112 (12%), 204uSV (10%), respectively. In a prone position, the phantom received ED on the neck, lens, right thumb and index finger, left thumb and index finger of 85 (20%), 92 (12%), 401 (10%), 585 (10%), 295 (10%), 567 (10%), respectively. In both position, the right hand seems exposed more than the left hand. The index fingers are 1.5 (right hand) and 1.9 (left hand) fold more exposed than the thumbs. CONCLUSIONS The effective dose is 1.5 and 1.3 fold higher for lens and extremities, respectively, in a prone position percutaneous nephrolithotomy compared to a modified supine position. © 2015 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 193Issue 4SApril 2015Page: e178 Advertisement Copyright & Permissions© 2015 by American Urological Association Education and Research, Inc.MetricsAuthor Information Jonathan Cloutier More articles by this author Jean-Baptiste Terrasa More articles by this author Luca Villa More articles by this author Olivier Traxer More articles by this author Expand All Advertisement Advertisement PDF DownloadLoading ..." @default.
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• W2044735797 title "MP17-06 RADIATION DOSES IN PRONE VERSUS SUPINE POSITION DURING PERCUTANEOUS NEPHROLITHOTOMY, RESULTS WITH AN ANTHROPOMORPHIC MODEL" @default.
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