| A rotating cylinder phantom for flow and tissue color Doppler testing. | |
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MedLine Citation:
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PMID: 19713031 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Ultrasound Doppler using two-dimensional (2D) techniques is commonly used to study blood flow and myocardial tissue motion. This use includes measurement of velocity and time intervals, often in relation to the electrocardiogram (ECG) signal. 2D Doppler is frequently considered a real-time technique but in reality the acquisition time can be as long as 200 ms per image. We have developed a test-phantom using a rotating cylinder to simulate blood flow and tissue motion in a whole sector or space angle to evaluate velocity and timing characteristics. The phantom can produce constant velocities for velocity testing, as well as accelerating movement for testing the timing characteristics of ultrasound systems. Our investigation shows that the cylinder phantom is especially suitable for timing measurements in 2D Doppler imaging and that time delays between the Doppler signals and the ECG signal exist in the tested ultrasound system. |
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Authors:
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Andrew Walker; Egil Henriksen; Ivar Ringqvist; Per Ask |
Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't Date: 2009-08-27 |
Journal Detail:
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Title: Ultrasound in medicine & biology Volume: 35 ISSN: 1879-291X ISO Abbreviation: Ultrasound Med Biol Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2009-11-02 Completed Date: 2010-01-21 Revised Date: - |
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: 1892-8 Citation Subset: IM |
Affiliation:
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Department of Clinical Physiology, Central Hospital, S-72189 V??ster??s, Sweden. andrew.walker@ltv.se |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Blood Flow Velocity Echocardiography, Doppler, Color / methods Electrocardiography Equipment Design Humans Models, Cardiovascular* Phantoms, Imaging* Ultrasonography, Doppler, Color / methods* Ultrasonography, Doppler, Pulsed / methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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