| Dopplersonographic measurement of global cerebral circulation time using echo contrast-enhanced ultrasound in normal individuals and patients with arteriovenous malformations. | |
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MedLine Citation:
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PMID: 12049958 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Echo-contrast "bolus tracking" by ultrasound (US) is an exciting new tool to study cerebral haemodynamics. In the present study, a global cerebral circulation time (CCT) was measured by extracranial Doppler as the time difference of contrast bolus arrival between the internal carotid artery and internal jugular vein. A total of 64 healthy volunteers and 9 patients with an angiographically diagnosed arteriovenous malformation (AVM) were studied. CCT in volunteers and patients was calculated as the time interval between the points of 10% rise (CCT(1)) and 90% rise (CCT(3)) of the total intensity increase and between the turning points (CCT(2)) of the resulting time-intensity curves. In the volunteer group, CCT(1) was 5.4 +/- 1.8 s, CCT(2) was 7 +/- 1.3 s and CCT(3) 7.5 +/- 1.8 s. CCT results in the AVM group were 2.8 +/- 2.5 s, 3.0 +/- 1.3 s and 4.5 +/- 2.1 s, respectively, and differed significantly from the controls. For the first time, we could confirm a significant shortening of CCT in patients with cerebral AVM by US. The presented test might become a new, additional tool for AVM evaluation and follow-up of treatment in these patients. |
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Authors:
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Stephan Joachim Schreiber; Uwe Franke; Florian Doepp; Elda Staccioli; Kamil Uludag; José Manuel Valdueza |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Ultrasound in medicine & biology Volume: 28 ISSN: 0301-5629 ISO Abbreviation: Ultrasound Med Biol Publication Date: 2002 Apr |
Date Detail:
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Created Date: 2002-06-06 Completed Date: 2002-08-15 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0410553 Medline TA: Ultrasound Med Biol Country: England |
Other Details:
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Languages: eng Pagination: 453-8 Citation Subset: IM |
Affiliation:
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Department of Neurology, University Hospital Charité, Schumannstrasse 20/21, 10098 Berlin, Germany. Stephan.Schreiber@charite.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Blood Circulation Time Carotid Artery, Internal / ultrasonography Cerebrovascular Circulation / physiology* Contrast Media Female Humans Intracranial Arteriovenous Malformations / physiopathology*, radiography, ultrasonography* Jugular Veins / ultrasonography Male Middle Aged Sensitivity and Specificity Ultrasonography, Doppler, Transcranial / methods* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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