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US 2015/0305719 A1Published application
Shear wave attenuation from k-space analysis system
AssigneeMayo Foundation for Medical Education and Research
InventorsIvan Z. Nenadic, Shigao Chen, James F. Greenleaf, Matthew W. Urban, Bo Qiang, Heng Zhao
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Abstract
The present invention provides a system and method for ultrasound processes using wave attenuation derived from k-space analysis by analyzing spatial frequency domain data.
Claims22
A system for determining a property of a tissue of a subject, the system comprising:
- an ultrasound transmitter configured to engage a subject and cause a shear wave to propagate through the subject;
- an ultrasound receiver configured to acquire data from the subject as the shear wave to propagates through the subject;
- a processor configured to:
- transform the data acquired by the ultrasound receiver into a frequency domain to form k-space data;
- analyze the k-space data to determine an attenuation of the shear wave as it propagated through the subject;
- and
- a report generator configured to generate a report indicating at least one of the attenuation of the shear wave as it propagated through the subject and a metric calculated using the attenuation of the shear wave as it propagated through the subject.
4 more elements
A system for determining a property of a tissue of a subject, the system comprising:
- an ultrasound transmitter configured to engage a subject and cause a shear wave to propagate through the subject;
- an ultrasound receiver configured to acquire data from the subject as the shear wave to propagates through the subject;
- a processor configured to:
- transform the data acquired by the ultrasound receiver into a frequency domain to form k-space data;
- analyze the k-space data to determine a magnitude of the k-space data to identify a peak magnitude;
- using the magnitude profile of the k-space data, determine an attenuation of the shear wave as it propagated through the subject;
- and
- calculate at least one property of the tissue using the attenuation of the shear wave as it propagated through the subject;
- and
- generate a report indicating at least the at least one property of the tissue.
7 more elements
A method for estimating at least one of phase velocity and attenuation of shear waves propagating through a subject, the method comprising:
- controlling a source of energy to generate shear waves within the subject;
- acquiring, with a medical device, data about the shear waves as the shear waves propagate through the subject;
- transforming the data to a frequency domain to form k-space data;
- analyze the k-space data to determine at lest one of an attenuation and a velocity of the shear wave as it propagated through the subject;
- and
- generating a report using the at least one of the attenuation and the velocity of the shear wave as it propagated through the subject.
3 more elements
Dependencies are inferred from the claim text.