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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2013.2710
|2 doi
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|a pubmed24n0799.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Nhan, Tam
|e verfasserin
|4 aut
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| 245 |
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|a Transducer design and characterization for dorsal-based ultrasound exposure and two-photon imaging of in vivo blood-brain barrier disruption in a rat model
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 11.05.2015
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|a Date Revised 25.11.2016
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|a published: Print
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|a Citation Status MEDLINE
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|a Focused ultrasound (FUS) and microbubbles have been used effectively for transient, noninvasive blood¿ brain barrier disruption (BBBD). The use of two-photon microscopy (2PM) imaging of BBBD can provide valuable insights into the associated cellular mechanisms and fundamental biological effects. Coupling a thin ring-shaped transducer to a coverslip offers a robust solution for simultaneous dorsal application of FUS for BBBD and in vivo 2PM imaging of the cerebral microvasculature under treatment conditions. Two modes of vibration (thickness and height) from the transducer configuration were investigated for BBBD in an animal model. With the transducer operating in the thickness mode at 1.2 MHz frequency, shallow and localized BBBD near the cortical surface of animal brain was detected via 2PM and confirmed by Evans blue (EB) extravasation. Acoustic pressures ranging from 0.2 to 0.8 MPa were tested and the probability for successful BBBD was identified. Two distinct types of disruption characterized by different leakage kinetics were observed and appeared to be dependent on acoustic pressure
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Burgess, Alison
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hynynen, Kullervo
|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 60(2013), 7 vom: 15. Juli, Seite 1376-85
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
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|g volume:60
|g year:2013
|g number:7
|g day:15
|g month:07
|g pages:1376-85
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|u http://dx.doi.org/10.1109/TUFFC.2013.2710
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