title: [Potentials of echography for diagnosing x-ray-negative calculi].
abstract: The objective of the authors, with the present paper, is to specify the possibilities of echography in patients with "negative" renal lithiasis. A total of 54 patients were studied, grouped in two subgroups: subgroup A--33 patients with native-graphy, urography and echography, subgroup B--21 patients with chronic renal insufficiency and intolerance to X-ray contrast media, to whom only native-graphy and echography were performed. The authors concluded, on the base of the statistical calculations, that echography in the patients studied by them, has a higher percentage probability of differentiating the negative concrements than urography.
authors.forename: R
authors.initials: R
authors.lastname: Krŭsteva
authors.forename: R
authors.initials: R
authors.lastname: Dzherasi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003287:Contrast Media; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007483:Iothalamic Acid / Q000031:analogs & derivatives; D007668:Kidney / Q000000981:diagnostic imaging; D007669:Kidney Calculi / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D007483:Iothalamic Acid; C002587:ioxitalamic acid
vernacular_title: Vŭzhmozhnosti na ekhografiiata za diagnostitsirane na rentgennegativni konkrementi.