Results 221 to 230 of about 239,856 (276)
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Electromagnetic acoustic imaging
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2013Electromagnetic acoustic imaging (EMAI) is a new imaging technique that uses long-wavelength RF electromagnetic (EM) waves to induce ultrasound emission. Signal intensity and image contrast have been found to depend on spatially varying electrical conductivity of the medium in addition to conventional acoustic properties.
Jane F, Emerson +5 more
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Otolaryngologic Clinics of North America, 1992
A negative high-quality, high-resolution, contrast-enhanced MRI scan is excellent evidence that a patient does not have an AN. Most nerve sheath tumors have a characteristic appearance, and when a tumor is detected there is seldom any doubt as to the identity of the lesion.
H D, Curtin, W L, Hirsch
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A negative high-quality, high-resolution, contrast-enhanced MRI scan is excellent evidence that a patient does not have an AN. Most nerve sheath tumors have a characteristic appearance, and when a tumor is detected there is seldom any doubt as to the identity of the lesion.
H D, Curtin, W L, Hirsch
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AIAA AVIATION 2021 FORUM, 2021
In aeroacoustic wind tunnel measurements beamforming algorithms are frequently employed to detect and quantify aerodynamic noise sources. In open test section wind tunnels the sound originating from a noise source travels from inside the potential core into the quiescent flow region where the microphone array is located, on its way passing through a ...
Biesheuvel, J. +3 more
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In aeroacoustic wind tunnel measurements beamforming algorithms are frequently employed to detect and quantify aerodynamic noise sources. In open test section wind tunnels the sound originating from a noise source travels from inside the potential core into the quiescent flow region where the microphone array is located, on its way passing through a ...
Biesheuvel, J. +3 more
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Imaging Acoustics and Acoustic Imaging
2002This paper provides a brief overview of some of the techniques for imaging acoustic waves inside and on the surface of solids. Optical methods show the influence of material anisotropy on acoustical wave propagation in transparent solids. Multiple-pulse holography images waves on the surface of materials without the necessity of scanning.
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Pulsed magneto-acoustic imaging
2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009Nanoparticles are attracting considerable interest as contrast agents for many different imaging modalities. Moreover, imaging the events at the cellular and molecular level is possible by using nanoparticles that have the desired targeting moiety.
Mohammad, Mehrmohammadi +4 more
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Annual Review of Biomedical Engineering, 2001
▪ Abstract The potential role of therapeutic ultrasound in medicine is promising. Currently, medical devices are being developed that utilize high-intensity focused ultrasound as a noninvasive method to treat tumors and to stop bleeding (hemostasis). The primary advantage of ultrasound that lends the technique so readily to use in noninvasive therapy
S, Vaezy +3 more
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▪ Abstract The potential role of therapeutic ultrasound in medicine is promising. Currently, medical devices are being developed that utilize high-intensity focused ultrasound as a noninvasive method to treat tumors and to stop bleeding (hemostasis). The primary advantage of ultrasound that lends the technique so readily to use in noninvasive therapy
S, Vaezy +3 more
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Molecular imaging in oncology: Current impact and future directions
Ca-A Cancer Journal for Clinicians, 2022Steven P Rowe, Martin G Pomper
exaly
2001
The “borehole televiewer” (BHTV) developed by Mobil in the late 1960s was the first borehole imaging device that could be run in typical wells of the oil industry (Zemanek et al., 1969, 1970). Optical imaging devices (chapter 2.5) had been developed earlier but were only applicable in holes with clear visibility, i.e.
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The “borehole televiewer” (BHTV) developed by Mobil in the late 1960s was the first borehole imaging device that could be run in typical wells of the oil industry (Zemanek et al., 1969, 1970). Optical imaging devices (chapter 2.5) had been developed earlier but were only applicable in holes with clear visibility, i.e.
openaire +1 more source