Motion detection using ping-based and multiple aperture doppler ultrasound
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United States of America Patent
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Nov 28, 2023
Grant Date -
Jul 4, 2019
app pub date -
Mar 11, 2019
filing date -
Dec 1, 2011
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Abstract
A method of full-field or “ping-based” Doppler ultrasound imaging allows for detection of Doppler signals indicating moving reflectors at any point in an imaging field without the need to predefine range gates. In various embodiments, such whole-field Doppler imaging methods may include transmitting a Doppler ping from a transmit aperture, receiving echoes of the Doppler ping with one or more separate receive apertures, detecting Doppler signals and determining the speed of moving reflectors. In some embodiments, the system also provides the ability to determine the direction of motion by solving a set of simultaneous equations based on echo data received by multiple receive apertures.
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