Method and apparatus for detecting cardiac events
AssigneeGeneral Electric Company
InventorsSvein Arne Aase, Sigmund Frigstad, Hans Garmann Torp
Life of this patent
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Abstract
A method and apparatus for detecting cardiac events. Ultrasonic data comprising a heart cycle is acquired by a probe. Tissue velocities associated with the ultrasonic data are detected. One of a maximum and a minimum value is detected based on the tissue velocities. A time within the heart cycle associated with the maximum or minimum value is determined, and a cardiac event is detected with respect to the time within the heart cycle and the maximum or minimum value.
Claims24
A method for detecting cardiac events, comprising:
- acquiring ultrasonic data comprising a heart cycle;
- detecting tissue velocities associated with said ultrasonic data;
- detecting a value based on said tissue velocities, said value being one of a maximum value and a minimum value;
- identifying a time within said heart cycle associated with said value;
- and
- detecting a cardiac event with respect to said value and said time, wherein the cardiac event is the opening or closing of a cardiac valve.
An apparatus for detecting cardiac events, comprising:
- an ultrasonic probe for transmitting and receiving ultrasonic data;
- an ECG device for acquiring EGG data associated with said ultrasonic data;
- a signal processor configured to process said ultrasonic data, said signal processor detecting one of a maximum and minimum value based on tissue velocities associated with said ultrasonic data, said signal processor identifying a time associated with said one of a maximum and minimum value, said signal processor detecting a cardiac event with respect to said time and said one of a maximum and minimum value, wherein the cardiac event is the opening or closing of a cardiac valve;
- and
- a display for displaying at least one of said ultrasonic data and said EGG data.
A method for detecting cardiac events, comprising:
- acquiring ultrasonic data comprising a heart cycle;
- detecting a first maximum or minimum value based on tissue velocities associated with said ultrasonic data;
- locating a search interval based on said first maximum or minimum value, said search interval comprising a portion of said heart cycle;
- detecting a second maximum or minimum value based on said tissue velocities within said search interval;
- and
- detecting a cardiac event using said second maximum or minimum value.
Dependencies are inferred from the claim text.