| Multi-slice computed tomographic angiography for stenosis detection in forearm hemodialysis arteriovenous fistulas. | |
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MedLine Citation:
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PMID: 19085898 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: A method of diagnosing the extent and severity of arteriovenous fistula (AVF) stenoses is multislice computed tomographic angiography (MS-CTA). The aim of this prospective study was to assess the accuracy of MS-CTA for the detection and grading of stenoses in AVF in comparison to digital subtraction angiography (DSA), which was used as the gold standard of reference. METHODS: Fifteen hemodialysis (HD) patients with dysfunctioning forearm AVF were included. These AVFs were evaluated by both DSA and MS-CTA and were read in a prospective, blinded manner by two radiologists experienced in vascular imaging. RESULTS: ROC analysis revealed areas under the curve of 0.90+/-0.07 for observer I and 0.87+/-0.08 for observer II at a stenosis cut-off level of >or=50% diameter reduction. The combined results for MS-CTA showed sensitivity, specificity and positive and negative predictive values of 82%, 98%, 82% and 98% for stenoses>or=50% and 71%, 99%, 77% and 98% for stenoses>or=75%. Inter-observer agreement for the detection of stenoses>or=50% diameter reduction was 0.70 and 1.0, for MS-CTA and DSA, respectively. CONCLUSION: MS-CTA can provide good visualization of forearm HD access AVF and has moderate sensitivity, but high specificity for the detection of flow-limiting stenoses. |
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Authors:
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P P G M Rooijens; G P Serafino; D Vroegindeweij; R Dammers; T I Yo; A A E A De Smet; J H M Tordoir |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article |
Journal Detail:
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Title: The journal of vascular access Volume: 9 ISSN: 1129-7298 ISO Abbreviation: J Vasc Access Publication Date: 2008 Oct-Dec |
Date Detail:
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Created Date: 2008-12-16 Completed Date: 2009-02-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100940729 Medline TA: J Vasc Access Country: Italy |
Other Details:
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Languages: eng Pagination: 278-84 Citation Subset: IM |
Affiliation:
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Department of Surgery, Medical Center Rijnmond Zuid, Rotterdam, The Netherlands. prooijens@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Angiography, Digital Subtraction* Arteriovenous Shunt, Surgical / adverse effects* Constriction, Pathologic Female Forearm / blood supply* Humans Male Middle Aged Observer Variation Predictive Value of Tests Prospective Studies ROC Curve Renal Dialysis* Reproducibility of Results Sensitivity and Specificity Thrombosis / etiology, radiography* Time Factors Tomography, X-Ray Computed* Vascular Patency |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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