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- W2074366106 abstract "Normal pulse echo ultrasound images are a straight line, constant wavespeed mapping of the echo wavetrain on to an image plane. However, the path the ultrasound beam actually traverses is curved because of refraction in the imaged volume [I]. Additionally, the speed-of-sound in this volume is usually spatially variant. The procedure for unwarping the pulse echo image begins with determining the spatial variations in speed-of-sound in the imaged volume. The speed distribution may be known or can be measured using high resolution ultrasonic computed tomography (UCT). Next, rays are traced from the pulse echo transducer position through the volume under investigation. Finally, the measured echo wavetrain is mapped along the curved ray with corrections being made for the wavespeed along the ray path. The result is an image with the echoes placed at their correct origin." @default.
- W2074366106 created "2016-06-24" @default.
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- W2074366106 date "1985-01-01" @default.
- W2074366106 modified "2023-09-27" @default.
- W2074366106 title "Unwarping the Pulse Echo Wavetrain for High Resolution Imaging" @default.
- W2074366106 cites W1975870152 @default.
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- W2074366106 doi "https://doi.org/10.1109/ultsym.1985.198624" @default.
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