Transcranial ultrasound brain perfusion assessment with a contrast agent-specific imaging mode: results of a two-center trial.

Details

Serval ID
serval:BIB_0549EE498780
Type
Article: article from journal or magazin.
Collection
Publications
Title
Transcranial ultrasound brain perfusion assessment with a contrast agent-specific imaging mode: results of a two-center trial.
Journal
Stroke
Author(s)
Hölscher T., Wilkening W., Draganski B., Meves S.H., Eyding J., Voit H., Bogdahn U., Przuntek H., Postert T.
ISSN
1524-4628 (Electronic)
ISSN-L
0039-2499
Publication state
Published
Issued date
2005
Peer-reviewed
Oui
Volume
36
Number
10
Pages
2283-2285
Language
english
Notes
Publication types: Journal Article ; Multicenter Study
Abstract
BACKGROUND AND PURPOSE: The purpose of this study was to assess brain perfusion with an ultrasound contrast-specific imaging mode and to prove if the results are comparable between 2 centers using a standardized study protocol.
METHODS: A total of 32 individuals without known cerebrovascular disease were included in the study. Perfusion studies were performed ipsilaterally in an axial diencephalic plane after intravenous administration of 0.75 mL of Optison. Offline time intensity curves (TIC) were generated in different anatomic regions. Both centers used identical study protocols, ultrasound machines, and contrast agent.
RESULTS: In both centers, the comparison of the parameter time to peak intensity (TPI) revealed significantly shorter TPIs in the main vessel structures compared with any parenchymal region of interest (ROI), whereas no significant differences were seen between the parenchymal ROIs. The parameter peak intensity (PI) varied widely interindividually in both centers, whereas the inter-ROI comparison revealed statistical significance (P < 0.05) in most of the cases according to the following pattern: (1) lentiforme nucleus > thalamus and white matter region, (2) thalamus > white matter region, and (3) main vessel > any parenchymal structure. Similar results were achieved in both centers independently.
CONCLUSIONS: The study demonstrates that brain perfusion assessment with an ultrasound contrast-specific imaging mode is comparable between different centers using the same study protocol.
Keywords
Adult, Brain/pathology, Cerebrovascular Circulation, Contrast Media/pharmacology, Corpus Striatum/pathology, Humans, Image Interpretation, Computer-Assisted, Microbubbles, Middle Aged, Perfusion, Reproducibility of Results, Thalamus/pathology, Time Factors, Ultrasonics, Ultrasonography, Doppler, Transcranial/methods
Pubmed
Web of science
Open Access
Yes
Create date
18/01/2013 17:56
Last modification date
20/08/2019 12:27
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