Zobrazeno 1 - 10
of 510
pro vyhledávání: '"F.S. Foster"'
Publikováno v:
Brazilian Journal of Medical and Biological Research, Vol 35, Iss 8, Pp 895-903 (2002)
Ultrasonic attenuation coefficient, wave propagation speed and integrated backscatter coefficient (IBC) of human coronary arteries were measured in vitro over the -6 dB frequency bandwidth (36 to 67 MHz) of a focused ultrasound transducer (50 MHz, fo
Externí odkaz:
https://doaj.org/article/98ba8b5c44e74beabd3ed366dfe1f185
Akademický článek
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Akademický článek
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Akademický článek
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Autor:
A. Heinmiller, Desmond Hirson, J. Sun, D. Bates, Melissa Yin, Andrew Needles, F.S. Foster, C. Theodoropoulos
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 60:888-897
Photoacoustic (PA) imaging for biomedical applications has been under development for many years. Based on the many advances over the past decade, a new photoacoustic imaging system has been integrated into a micro-ultrasound platform for co-register
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4adf0f5b80ea2911c36a44b7379be73
https://doi.org/10.1109/tuffc.2013.2646
https://doi.org/10.1109/tuffc.2013.2646
Targeted contrast agents and ultrasound imaging are now used in combination for the assessment and tracking of biomarkers in animal models in vivo. These applications have triggered interest in the understanding and prediction of the ultrasound echoe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf2493729591f033cb01d02599f32794
https://ora.ox.ac.uk/objects/uuid:57e47429-9110-4298-8ff0-f630925f62fd
https://ora.ox.ac.uk/objects/uuid:57e47429-9110-4298-8ff0-f630925f62fd
High-Frequency Subharmonic Pulsed-Wave Doppler and Color Flow Imaging of Microbubble Contrast Agents
Autor:
Emmanuel Cherin, David E. Goertz, F.S. Foster, Allison S. Brown, Raffi Karshafian, Andrew Needles, Peter N. Burns
Publikováno v:
Ultrasound in Medicine & Biology. 34:1139-1151
A recent study has shown the feasibility of subharmonic (SH) flow imaging at a transmit frequency of 20 MHz. This paper builds on these results by examining the performance of SH flow imaging as a function of transmit pressure. Further, we also inves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c990339820fbb6f9d8b15fd6a49ac29
https://doi.org/10.1016/j.ultrasmedbio.2007.12.011
https://doi.org/10.1016/j.ultrasmedbio.2007.12.011
Autor:
Peter N. Burns, Olivier Couture, Ross Williams, F.S. Foster, Peter D. Bevan, Emmanuel Cherin, K. Cheung
Publikováno v:
Physics in Medicine and Biology. 53:1209-1223
Ultrasound microbubble contrast agents have been demonstrated to scatter subharmonic energy at one-half the driving frequency. At ultrasound frequencies in the 20-40 MHz range, the subharmonic offers the potential to differentiate the blood in the mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c96e996b3600da9a34599a29edbbecfb
https://doi.org/10.1088/0031-9155/53/5/004
https://doi.org/10.1088/0031-9155/53/5/004
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 54:2082-2090
We present a technique that uses Golay phase encoding, pulse inversion, and amplitude modulation (GPIAM) for microbubble contrast agent imaging with ultrasound. This technique improves the contrast-to-tissue ratio (CTR) by increasing the time-bandwid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fab1cc566ec694fd6eeea690221de42
https://doi.org/10.1109/tuffc.2007.503
https://doi.org/10.1109/tuffc.2007.503
Publikováno v:
Ultrasonics
Ultrasonics, Elsevier, 2006, 44, pp.135--140
Ultrasonics, Elsevier, 2006, 44, pp.135--140
This article proposes to estimate slow blood flow with high frequency ultrasound imaging. The proposed technique combines 2 methods. First, a statistical method, called Speckle Flow Imaging (SFI) based on the analysis of changes in the speckle patter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1071b5ee80f3271a8bb439d90f83047
https://doi.org/10.1016/j.ultras.2006.06.025
https://doi.org/10.1016/j.ultras.2006.06.025