| Volume flow measurement in hemodialysis shunts using time-domain correlation. | |
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MedLine Citation:
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PMID: 10082351 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Volume flow was measured in 58 hemodialysis shunts (32 grafts and 26 radial fistulas) using the color velocity imaging-quantification method. This method is based on time-domain correlation for velocity calculation and integration of time-varying velocity profiles generated by M-mode sampling. Measurements were made in the brachial artery to estimate radial fistula flow or directly in the grafts. Intraoperator reproducibility was 14.9% for fistulas and 11.6% for grafts. Flow rate was significantly lower in abnormal shunts associated with a functional disorder or a morphologic complication (808 ml/min +/- 484) than in shunts associated with no abnormalities (1401 ml/min +/- 562). Receiver operating characteristic curves showed that a flow rate of 900 ml/min for fistulas and 1300 ml/min for grafts provided 81% and 79% sensitivity and 79% and 67% specificity, respectively. A functional disorder or a morphologic complication was associated with all fistulas and grafts in which flow rates were lower than 500 ml/min and 800 ml/min, respectively. |
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Authors:
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F Basseau; N Grenier; H Trillaud; C Douws; A Saint-Amon; V de Précigout; C Combe |
Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine Volume: 18 ISSN: 0278-4297 ISO Abbreviation: J Ultrasound Med Publication Date: 1999 Mar |
Date Detail:
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Created Date: 1999-04-28 Completed Date: 1999-04-28 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8211547 Medline TA: J Ultrasound Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 177-83 Citation Subset: IM |
Affiliation:
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Service de Radiologie, Groupe Hospitalier Pellegrin, Bordeaux, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aged, 80 and over Arteriovenous Shunt, Surgical* Blood Flow Velocity / physiology Brachial Artery / physiology*, ultrasonography Brachiocephalic Veins / physiology*, surgery, ultrasonography Catheters, Indwelling* Female Follow-Up Studies Humans Male Middle Aged ROC Curve Renal Dialysis / instrumentation* Reproducibility of Results Time Factors Ultrasonography, Doppler, Color |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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