| Development of a Vessel-Mimicking Material for use in Anatomically Realistic Doppler Flow Phantoms. | |
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MedLine Citation:
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PMID: 21497719 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Polyvinyl alcohol cryogel (PVA-C) is presented as a vessel-mimicking material for use in anatomically realistic Doppler flow phantoms. Three different batches of 10% wt PVA-C containing (i) PVA-C alone, (ii) PVA-C with antibacterial agent and (iii) PVA-C with silicon carbide particles were produced, each with 1-6 freeze-thaw cycles. The resulting PVA-C samples were characterized acoustically (over a range 2.65 to 10.5 MHz) and mechanically to determine the optimum mixture and preparation for mimicking the properties of healthy and diseased arteries found in vivo. This optimum mix was reached with the PVA-C with antibacterial agent sample, prepared after two freeze/thaw cycles, which achieved a speed of sound of 1538 ± 5 m s(-1) and a Young's elastic modulus of 79 ± 11 kPa. This material was used to make a range of anatomically realistic flow phantoms with varying degrees of stenoses, and subsequent flow experiments revealed that higher degrees of stenoses and higher velocities could be achieved without phantom rupturing compared with a phantom containing conventional wall-less vessels. (E-mail:jacinta.browne@dit.ie). |
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Authors:
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Deirdre M King; Carmel M Moran; John D McNamara; Andrew J Fagan; Jacinta E Browne |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Ultrasound in medicine & biology Volume: 37 ISSN: 1879-291X ISO Abbreviation: Ultrasound Med Biol Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-18 Completed Date: - 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: 813-26 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 World Federation for Ultrasound in Medicine & Biology. All rights reserved. |
Affiliation:
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Medical Ultrasound Physics and Technology Group, School of Physics and FOCAS Institute, Dublin Institute of Technology, Dublin, Ireland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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