Medical diagnostic ultrasound system and method for improved flow or movement detection with multiple clutter filters
AssigneeAcuson Corporation
InventorsIsmayil M. Guracar, Patrick J. Phillips
Life of this patent
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Abstract
A method and system for flow or movement detection is provided. More than one clutter filter is used. Each clutter filter's magnitude versus frequency response is optimized differently. Estimates of the flow or movement are generated from the data output by each of the clutter filters. Using selection or combination of the resulting estimates, the best attributes of each filter are used for imaging.
Claims60
A medical diagnostic ultrasound system for estimating flow or movement, the system comprising:
- first and second clutter filters, the first clutter filter characterized by a magnitude versus frequency response different than the second clutter filter;
- a combiner operatively connected to receive first and second estimates, the first and second estimates being responsive to the first and second clutter filters, respectively, the combiner operable to combine the first and second estimates.
A medical diagnostic ultrasound system for estimating flow or movement, the system comprising:
- first and second clutter filters, the first clutter filter characterized by a magnitude versus frequency response different than the second clutter filter;
- a selector operatively connected to receive first and second estimates, the first and second estimates a function of the first and second clutter filters, respectively, the selector operable to select one of the first and second estimates.
A medical diagnostic ultrasound method for estimating flow or movement, the method comprising the steps of:
- (a) filtering with a first clutter filter;
- (b) filtering with a second clutter filter, the first clutter filter characterized by a magnitude versus frequency response different than the second clutter filter;
- (c) estimating first and second estimates responsive to steps (a) and (b), respectively;
- (d) selecting one of the first and second estimates.
A medical diagnostic ultrasound method for estimating flow or movement, the method comprising the steps of:
- (a) filtering with a first clutter filter;
- (b) filtering with a second clutter filter, the first clutter filter characterized by a magnitude frequency response different than the second clutter filter;
- (c) estimating first and second estimates responsive to steps (a) and (b), respectively;
- (d) combining the first and second estimates.
Dependencies are inferred from the claim text.