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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2008.764
|2 doi
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|a pubmed25n0600.xml
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|a (NLM)18519220
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|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Xu, Zhen
|e verfasserin
|4 aut
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|a Evolution of bubble clouds induced by pulsed cavitational ultrasound therapy - histotripsy
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|c 2008
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 08.07.2008
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|a Date Revised 06.01.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a Mechanical tissue fractionation can be achieved using successive, high-intensity ultrasound pulses in a process termed histotripsy. Histotripsy has many potential clinical applications where noninvasive tissue removal is desired. The primary mechanism for histotripsy is believed to be cavitation. Using fast-gated imaging, this paper studies the evolution of a cavitating bubble cloud induced by a histotripsy pulse (10 and 14 cycles) at peak negative pressures exceeding 21MPa. Bubble clouds are generated inside a gelatin phantom and at a tissue-water interface, representing two situations encountered clinically. In both environments, the imaging results show that the bubble clouds share the same evolutionary trend. The bubble cloud and individual bubbles in the cloud were generated by the first cycle of the pulse, grew with each cycle during the pulse, and continued to grow and collapsed several hundred microseconds after the pulse. For example, the bubbles started under 10 microm, grew to 50 microm during the pulse, and continued to grow 100 microm after the pulse. The results also suggest that the bubble clouds generated in the two environments differ in growth and collapse duration, void fraction, shape, and size. This study furthers our understanding of the dynamics of bubble clouds induced by histotripsy
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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, Non-U.S. Gov't
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1 |
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|a Raghavan, M
|e verfasserin
|4 aut
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|a Hall, T L
|e verfasserin
|4 aut
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|a Mycek, M-A
|e verfasserin
|4 aut
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|a Fowlkes, J B
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 55(2008), 5 vom: 01. Mai, Seite 1122-32
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
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|g volume:55
|g year:2008
|g number:5
|g day:01
|g month:05
|g pages:1122-32
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|u http://dx.doi.org/10.1109/TUFFC.2008.764
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