| Image quality of the temporal bone window examined by transcranial Doppler sonography and correlation with postmortem computed tomography measurements. | |
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MedLine Citation:
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PMID: 14530639 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: The major limitation of native transcranial colour-coded duplex sonography (TCCS) in older stroke patients is the relatively frequent occurrence of an insufficient temporal window. Our goal was to investigate the relationship between the in vivo Doppler ultrasound image quality of the temporal bone, and computed tomography (CT)-determined thickness, density, and homogeneity of cadaver temporal bone. METHODS: Thirty-three moribund neurological patients who eventually died were examined by TCCS using the transtemporal approach. The sonographer categorized the quality of the TCCS image (excellent, intermediate, and poor). During autopsy, a rectangular sample of the temporal squama was removed, which corresponded to the area of the in vivo acoustic window. The thickness of the whole temporal bone, cortical, and cancellous (= diploe) bone as well as the density and homogeneity were determined by high-resolution CT. RESULTS: Thirty-seven temporal bones were obtained. The quality of the acoustic window was classified as excellent in 13, intermediate in 6 and poor in 18 cases. A significant correlation between the complete bone thickness, as well as between the absolute thickness of the diploe and the quality of the acoustic window was found: the thinner the bone/diploe, the better the colour Doppler signal. The thickness of the cortical plates and the homogeneity of the bones were identical in the three image quality categories. CONCLUSION: The transtemporal TCCS image quality depends mainly on the thickness of the cancellous component of the temporal bone. |
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Authors:
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József Kollár; Gernot Schulte-Altedorneburg; Judit Sikula; Béla Fülesdi; E Bernd Ringelstein; Vineet Mehta; László Csiba; Dirk W Droste |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article Date: 2003-10-03 |
Journal Detail:
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Title: Cerebrovascular diseases (Basel, Switzerland) Volume: 17 ISSN: 1015-9770 ISO Abbreviation: Cerebrovasc. Dis. Publication Date: 2004 |
Date Detail:
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Created Date: 2003-12-19 Completed Date: 2004-04-13 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9100851 Medline TA: Cerebrovasc Dis Country: Switzerland |
Other Details:
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Languages: eng Pagination: 61-5 Citation Subset: IM |
Copyright Information:
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Copyright 2004 S. Karger AG, Basel |
Affiliation:
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Department of Radiology, Medical and Health Science Centre, Faculty of Medicine, University of Debrecen, Hungary. KJO@radiologia.doe.hu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Bone Density Female Humans Male Middle Aged Reproducibility of Results Temporal Bone / radiography*, ultrasonography* Tomography, X-Ray Computed* Ultrasonography, Doppler, Color* Ultrasonography, Doppler, Transcranial* |
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