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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2022.3153661
|2 doi
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|a pubmed24n1124.xml
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|a (NLM)35192463
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Shen, Che-Chou
|e verfasserin
|4 aut
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|a Golay-Encoded Ultrasound Monitoring of Simultaneous High-Intensity Focused Ultrasound Treatment
|b A Phantom Study
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|c 2022
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|a Text
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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 01.04.2022
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|a Date Revised 23.06.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Ultrasound (US) imaging has high potential in monitoring high-intensity focused US (HIFU) treatment due to its superior temporal resolution. However, US monitoring is often hindered by strong HIFU interference, which overwhelms the echoes received by the imaging array. In this study, a method of Golay-encoded US monitoring is proposed to visualize the imaged object for simultaneous HIFU treatment. It effectively removes HIFU interference patterns in real-time B-mode imaging and improves the metrics of image quality, such as peak signal-to-noise ratio (PSNR), structural similarity (SSIM), and contrast ratio (CR). Compared to the pulse-inversion sequence, the N -bit Golay sequence can boost the echo magnitude of US monitoring by another N times and, thus, exhibits higher robustness. Simulations show that a sinusoidal HIFU waveform can be fully eliminated using Golay decoding when the bit duration of the N -bit Golay sequence ( N is the power of 4) coincides with either odd (Case I) or even (Case II) integer multiples of the HIFU quarter period. Experimental results also show that the Golay decoding with Case II can increase the PSNR of US monitoring images by more than 30 dB for both pulse- and continuous-wave HIFU transmissions. The SSIM index also effectively improves to about unity, indicating that the B-mode image with HIFU transmission is visually indistinguishable from that acquired without HIFU transmission. Though Case I is inferior to Case II in the elimination of even-order HIFU harmonic, they together enable a more flexible selection of imaging frequencies to meet the required image resolution and penetration for Golay-encoded US monitoring
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Lin, Ri-Cheng
|e verfasserin
|4 aut
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|a Wu, Nien-Hung
|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 69(2022), 4 vom: 22. Apr., Seite 1370-1381
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
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|g volume:69
|g year:2022
|g number:4
|g day:22
|g month:04
|g pages:1370-1381
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|u http://dx.doi.org/10.1109/TUFFC.2022.3153661
|3 Volltext
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