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US 8,998,812 B2Granted
Ultrasound method and probe for electromagnetic noise cancellation
AssigneeGeneral Electric Company
InventorsMorris Ziv-Ari, Alexander Sokulin, Eitan Berg
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Abstract
A method of ultrasound imaging includes acquiring ultrasound data with a plurality of transducer elements. The ultrasound data includes a plurality of signals. The method includes detecting an electromagnetic noise signal during the process of acquiring the ultrasound data. The method also includes modifying the plurality of signals based on the electromagnetic noise signal to generate a plurality of noise-cancelled signals.
Claims18
A method of ultrasound imaging comprising:
- acquiring ultrasound data with a plurality of transducer elements, the ultrasound data comprising a plurality of signals, the ultrasound data comprising phase information;
- analyzing the ultrasound data to determine an estimated electromagnetic noise signal, wherein said analyzing the ultrasound data to determine the estimated electromagnetic noise signal comprises determining the estimated electromagnetic signal by averaging a subset of the plurality of signals that includes signals from different transducer elements of the plurality of transducer elements, wherein the subset of the plurality of signals is a group of signals originating from a plurality of the transducer elements that are located in one or more edge regions of a transducer array;
- modifying the plurality of signals based on the estimated electromagnetic noise signal to generate a plurality of noise-cancelled signals, the plurality of noise-cancelled signals containing less electromagnetic noise than the plurality of signals;
- and
- generating an image using the plurality of noise-cancelled signals.
2 more elements
A method of ultrasound imaging comprising:
- acquiring ultrasound data with a plurality of transducer elements, the ultrasound data comprising a plurality of signals originating from corresponding transducer elements, the plurality of signals comprising phase information;
- determining an estimated electromagnetic noise signal by cross-correlating a subset of the plurality of signals that includes signals from different transducer elements of the plurality of transducer elements, wherein said cross-correlating a subset of the plurality of signals that are from different transducer elements of the plurality of transducer elements comprises cross-correlating signals originating from a plurality of the transducer elements that are located in one or more edge regions of an array of the plurality of transducer elements;
- subtracting the estimated electromagnetic noise signal from the ultrasound data to generate a plurality of noise-cancelled signals, the plurality of noise-cancelled signals containing less electromagnetic noise than the plurality of signals;
- and
- generating an image using the plurality of noise-cancelled signals.
2 more elements
A method of ultrasound imaging comprising:
- acquiring ultrasound data with a plurality of transducer elements, the ultrasound data comprising a plurality of signals originating from corresponding transducer elements, the plurality of signals comprising phase information;
- determining an estimated electromagnetic noise signal by cross-correlating a subset of the plurality of signals that includes signals from different transducer elements of the plurality of transducer elements, the subset of the plurality of signals being signals that originate from a plurality of the transducer elements that are located in one or more edge regions of an array of the plurality of transducer elements;
- subtracting the estimated electromagnetic noise signal from the ultrasound data to generate a plurality of noise-cancelled signals, the plurality of noise-cancelled signals containing less electromagnetic noise than the plurality of signals;
- and
- generating an image using the plurality of noise-cancelled signals.
2 more elements
Dependencies are inferred from the claim text.