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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2011.2045
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|a eng
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|a Carneal, Catherine M
|e verfasserin
|4 aut
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|a A tissue-mimicking ultrasound test object using droplet vaporization to create point targets
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|c 2011
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 02.02.2012
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|a Date Revised 20.10.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a Ultrasound test objects containing reference point targets could be useful for evaluating ultrasound systems and phase aberration correction methods. Polyacrylamide gels containing albumin-stabilized droplets (3.6 μm mean diameter) of dodecafluoropentane (DDFP) are being developed for this purpose. Perturbation by ultrasound causes spontaneous vaporization of the superheated droplets to form gas bubbles, a process termed acoustic droplet vaporization (ADV). The resulting bubbles (20 to 160 μmm diameter) are small compared with acoustic wavelengths in diagnostic ultrasound and are theoretically suitable for use as point targets (phase errors < 20° for typical f-numbers). Bubbles distributed throughout the material are convenient for determining the point spread function in an imaging plane or volume. Cooling the gel causes condensation of the DDFP droplets, which may be useful for storage. Studying ADV in such viscoelastic media could provide insight into potential bioeffects from rapid bubble formation
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Acrylic Resins
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|a Albumins
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|a Fluorocarbons
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|a polyacrylamide gels
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|a perfluoropentane
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|a 678-26-2
|2 NLM
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|a Kripfgans, Oliver D
|e verfasserin
|4 aut
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|a Krücker, Jochen
|e verfasserin
|4 aut
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|a Carson, Paul L
|e verfasserin
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|a Fowlkes, J Brian
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 58(2011), 9 vom: 15. Sept., Seite 2013-25
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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|g volume:58
|g year:2011
|g number:9
|g day:15
|g month:09
|g pages:2013-25
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