2026-10-19T01:40:09Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/141982026-10-18T21:14:21Zopenairedrivercom_ebyu_10000col_ebyu_10001

Effect of Prone and Supine Positioning on Computed Tomography Urography ExaminationKaravaş, ErdalGürel, SafiyeKlyan, AysuHalicioǧlu, SlddlkaDaǧistan, EmineComputed tomographyMSCTProneSupineUrographyAdolescentAdultAgedAged, 80 and overChildChild, PreschoolContrast MediaHumansKidneyMiddle AgedPatient PositioningPredictive Value of TestsProne PositionSupine PositionTomography, X-Ray ComputedUreterUrinary BladderUrinary TractUrologic DiseasesYoung Adultcontrast mediumArticlecomputer assisted tomographycontrolled studycystographyObjectives: The aim of this study is to evaluate the effects of performing computed tomography (CT) urogram in the prone position in terms of diagnosis. Methods: CT urograms of 208 patients imaged randomly in the prone and supine positions were included in this study. A total of 199 patients and 370 collecting systems were examined in total. Axial raw data and reconstructed coronal thin and thick MIP images with a slice thickness of 5 mm were evaluated by 2 independent radiologists blinded to the initial diagnosis. Renal collecting system, ureters, and bladder were included in radiological evaluation. Anatomically, the renal collecting system was separated into 7 regions. Filling and dilatation of collecting systems were evaluated via images at urogram phase by scoring. Results: Filling in lower pole infundibulum (p = 0.006), distal ureter (p = 0.006); and highly dilated lower pole calyx (p = 0.020), pelvis (p = 0.006), and bladder (p < 0.001) were determined to be better in images in the prone position compared to the supine position. There were no statistical differences in other regions. Conclusion: Better contrast material filling is achieved in dilated or non-dilated lower pole collecting system, dilated renal pelvis, non-dilated distal ureter of kidney, and in the bladder only by imaging the urogram phase in the prone position compared to the supine position. Additionally, presence of dilatation is a factor that could adversely affect filling. Studies in the future may investigate the contribution of prone positioning to CT urogram with larger series comparing it with other methods and modalities. © 2018 2018 S. Karger AG, Basel.S. Karger AG2018Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/14198https://doi.org/10.1159/0004907350042-1138enUrologia Internationalisinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/14198