| Acute ureterolithiasis: incidence of secondary signs on unenhanced helical CT and influence on patient management. | |
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MedLine Citation:
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PMID: 14654033 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: The purpose of this study was to determine the incidence of secondary signs associated with ureteral stones on unenhanced helical computed tomography (CT) of patients with acute renal colic, and to correlate these with patient management and outcome. MATERIALS AND METHODS: One hundred and ten patients with ureterolithiasis were evaluated prospectively for the secondary signs of obstruction on unenhanced helical CT. Our attention was focused primarily on the presence or absence of seven secondary signs on unenhanced helical CT, including hydronephrosis, unilateral renal enlargement, perinephric oedema, unilateral absence of the white pyramid, hydroureter, periureteral oedema and lateroconal fascial thickening. RESULTS: Of the 110 patients, 91 (82.7%) had hydroureter, 88 (80%) had hydronephrosis, 65 (59%) had periureteric oedema and 63 (57.2%) had unilateral renal enlargement. Ninety stones passed spontaneously and 21 required intervention. CONCLUSION: Secondary signs of urinary tract obstruction are useful and supportive findings in interpretation of the CT examination. In our experience, the most reliable signs indicating ureteral obstruction are hydroureter, hydronephrosis, periureteral oedema and unilateral renal enlargement, respectively. In addition, stones larger than 6 mm, located within the proximal two thirds of the ureter, and seen associated with five or more the secondary signs of obstruction, are more likely to require endoscopic removal and/or lithotripsy. |
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Authors:
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G Ege; H Akman; K Kuzucu; S Yildiz |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Clinical radiology Volume: 58 ISSN: 0009-9260 ISO Abbreviation: Clin Radiol Publication Date: 2003 Dec |
Date Detail:
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Created Date: 2003-12-05 Completed Date: 2004-01-26 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 1306016 Medline TA: Clin Radiol Country: England |
Other Details:
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Languages: eng Pagination: 990-4 Citation Subset: IM |
Affiliation:
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Department of Radiology, Istanbul International Hospital, Istanbul, Turkey. gurkanege@yahoo.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aged, 80 and over Child Dilatation, Pathologic / radiography Edema Female Humans Hydronephrosis / radiography, therapy Male Middle Aged Prospective Studies Tomography, X-Ray Computed / methods* Ureteral Calculi / radiography*, therapy Ureteral Obstruction / etiology, radiography*, therapy |
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