| Simple trigonometry on computed tomography helps in planning renal access. | |
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MedLine Citation:
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PMID: 17826479 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To retrospectively assess the usefulness of the measurements on preoperative computed tomography (CT) of patients with urinary stone disease for planning the access site using vertical angulation of the C-arm. METHODS: Of the patients who underwent percutaneous nephrolithotomy from November 2001 to October 2006, 41 patients with superior calix access had undergone preoperative CT. The depth of the target stone (y) and the vertical distance from that point to the first rib free slice (x) were measured on CT. The limit of the ratio of x over y was accepted as 0.58, with ratios below that indicating that infracostal access could be achieved by vertical angulation of the C-arm. RESULTS: We achieved an approach to the superior calix through an infracostal access in 28 patients. The preoperative trigonometric study on CT predicted 24 of them. The stone-free rate was 92.6%, and no chest-related complications developed. CONCLUSIONS: Simple trigonometry on CT of the patients with complex stones could help endourologists in planning renal access. |
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Authors:
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Cenk Yücel Bilen; Burak Koçak; Gürcan Kitirci; Murat Danaci; Saban Sarikaya |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Urology Volume: 70 ISSN: 1527-9995 ISO Abbreviation: Urology Publication Date: 2007 Aug |
Date Detail:
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Created Date: 2007-09-10 Completed Date: 2007-10-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0366151 Medline TA: Urology Country: United States |
Other Details:
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Languages: eng Pagination: 242-5; discussion 245 Citation Subset: IM |
Affiliation:
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Department of Urology, Hacettepe Universitesi Tip Fakültesi, Ankara, Turkey. cybilen@yahoo.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Child Child, Preschool Female Humans Kidney Calculi / radiography*, surgery* Male Mathematics Middle Aged Nephrostomy, Percutaneous* Predictive Value of Tests Preoperative Care* Retrospective Studies Tomography, X-Ray Computed* / methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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