Results 21 to 30 of about 6,748,789 (382)
ACC Current Journal Review, 1996 Summary Doppler tissue imaging is a novel means of imaging that interrogates high amplitude, low velocity echoes in the range of tissue and myocardial motion. In addition to providing a qualitative aid in edge detection and wall motion analysis, quantitative interrogation of myocardial velocities may provide insights into normal and abnormal systolic
David S. Bach, William F. Armstrong
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The Difference Between Colour Doppler Velocity Imaging and Power Doppler Imaging [PDF]
European Heart Journal - Cardiovascular Imaging, 2002 The Doppler effect, which occurs on the reflection of ultrasound from moving blood or tissue, is observed as a shift in frequency of the reflected ultrasound from that of the incident ultrasound. This Doppler shift has been widely used in clinical practice as a means of measuring blood velocity.
T, Anderson, W N, McDicken
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IEEE Transactions on Medical Imaging, 2018 Singular value decomposition of ultrafast imaging ultrasonic data sets has recently been shown to build a vector basis far more adapted to the discrimination of tissue and blood flow than the classical Fourier basis, improving by large factor clutter ...
J. Baranger +5 more
semanticscholar +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Bistatic SAR (BiSAR) imaging is becoming more and more mature, nevertheless restricted by the significant problem of 2-D space-variation of echo signal.
Yuxuan Miao +4 more
doaj +1 more source
Laser Doppler holographic microscopy in transmission: application to fish embryo imaging [PDF]
, 2014 We have extended Laser Doppler holographic microscopy to transmission geometry. The technique is validated with living fish embryos imaged by a modified upright bio-microcope.
Alexandre, Daniel +2 more
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Three‐dimensional Doppler‐associated radar imaging method based on bi‐directional data processing
IET Radar, Sonar & Navigation, 2022 Using a microwave or millimetre wave radar system, this study aims to achieve highly accurate Doppler velocity estimation and radar imaging that would be suitable for various remote‐sensing sensors, such as self‐driving, surveillance, or security ...
Takumi Hayashi +2 more
doaj +1 more source
A Pilot Study on Novel Use of Color Doppler Imaging for Navigation of Wiring in Coronary Interventions. [PDF]
Ultrasound Med BiolKatayama M, Yang EH, Belohlavek M.
europepmc +3 more sources
Photoacoustics, 2023 Aiming at clinical translation, we developed an automatic 3D imaging system combining the emerging photoacoustic imaging with conventional Doppler ultrasound for detecting inflammatory arthritis.
Xiaorui Peng +10 more
doaj +1 more source
International Astronomical Union Colloquium, 1993 AbstractThe mapping of stellar surfaces using the observed profiles of spectral lines is described. The problem is expressed in terms of an integral equation to be solved, using Tikhonov’s method. The local line profiles may be given either by an analytic approximation or by the solution of the equation of transfer with a model atmosphere.
William Wehlau, John Rice
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International Journal of Biomedical Imaging, 2016 In macular spectral domain optical coherence tomography (SD-OCT) volumes, detection of the foveal center is required for accurate and reproducible follow-up studies, structure function correlation, and measurement grid positioning.
Jing Wu +5 more
doaj +1 more source