title: The effect of patient positioning on mural filling defects during double contrast cystography.
abstract: Different radiographic findings may be observed during double contrast cystography due to patient positioning affecting the distribution of positive and negative contrast media. A mass lesion was created in the urinary bladder of a canine cadaver to allow evaluation of the effect of patient positioning on the appearance of a mass during double contrast cystography. The mass appeared as a filling defect only on those views where positive contrast medium surrounded the mass. Otherwise, the mass appeared as a summation. Additionally, a patient is described illustrating the effect of patient positioning on detecting mural filling defects during double contrast cystography.
authors.affiliation: Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus 43210, USA.
authors.forename: P V
authors.initials: PV
authors.lastname: Scrivani
authors.forename: R
authors.initials: R
authors.lastname: Léveillé
authors.forename: R L
authors.initials: RL
authors.lastname: Collins
mesh_terms: D000818:Animals; D002102:Cadaver; D003287:Contrast Media; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D006417:Hematuria / Q000000981:diagnostic imaging / Q000662:veterinary*; D008297:Male; D011187:Posture; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D014549:Urinary Incontinence / Q000000981:diagnostic imaging / Q000662:veterinary*; D014567:Urography / Q000379:methods / Q000592:standards / Q000662:veterinary*
chemical_list: D003287:Contrast Media