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US 12,714,403 B2Granted
Intracardiac imaging using electro-anatomical data to generate augmented ultrasonic images
AssigneeBiosense Webster (Israel) Ltd.
InventorsGuy Wekselman, Lior Greenbaum, Eid Adawi, Dan Sztejnberg, David Haimovich, Emuna Eliav
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Abstract
In one exemplary mode, a medical system includes an ultrasound probe configured to captured ultrasonic images of at least part of a body part of a living subject, a display, and a processor configured to render to the display respective representations of respective electro-anatomical data subsets superimposed over respective ones of the ultrasonic images.
Claims17
A medical system, comprising:
- a mapping catheter configured to be inserted into a body part of a living subject, the mapping catheter comprising at least one electrode configured to capture electrical activity from tissue of the body part at respective locations over time;
- an ultrasound probe configured to capture ultrasonic images of at least a portion of the body part when inserted into the body of the living subject;
- at least one position sensor configured to generate at least one signal indicative of positions of the ultrasound probe and of the at least one electrode of the mapping catheter;
- a display;
- and
- a processor configured to:
- determine, in real time, positions of the ultrasound probe and of the at least one electrode of the mapping catheter within a shared three-dimensional (3D) coordinate frame responsive to the at least one signal generated by the at least one position sensor;
- determine electro-anatomical data from the electrical activity captured by the at least one electrode of the mapping catheter, and corresponding positions of the electro-anatomical data in the shared 3D coordinate frame;
- determine, from an electro-anatomical dataset comprising the electro-anatomical data, electro-anatomical data positioned within, or within a threshold of, a respective one of two-dimensional (2D) ultrasonic images in the shared 3D coordinate frame;
- render to the display respective representations of respective electro-anatomical data subsets superimposed on corresponding ones of the 2D ultrasonic images captured by the ultrasound probe;
- dynamically update, in real time, the superimposed representations in response to movement of the ultrasound probe, wherein the respective electro-anatomical data subsets change to reflect new positions of the corresponding ones of the 2D ultrasonic images in the shared 3D coordinate frame;
- and
- display, in the superimposed representations, color-encoded lines or regions corresponding to local activation time (LAT) data or bipolar data.
10 more elements
A medical method, comprising:
- capturing electrical activity from tissue of a body part of a living subject at respective locations over time using at least one electrode of a mapping catheter;
- capturing two-dimensional (2D) ultrasonic images of at least a portion of the body part of the living subject using an ultrasound probe;
- determining, in real time, positions of the ultrasound probe and of the at least one electrode of the mapping catheter within a shared three-dimensional (3D) coordinate frame responsive to at least one signal generated by at least one position sensor;
- determining electro-anatomical data from the electrical activity captured by the at least one electrode of the mapping catheter, and corresponding positions of the electro-anatomical data in the shared 3D coordinate frame;
- determining, from an electro-anatomical dataset comprising the electro-anatomical data, respective electro-anatomical data subsets comprising electro-anatomical data positioned within, or within a threshold of, respective ones of the 2D ultrasonic images in the shared 3D coordinate frame;
- rendering to a display respective representations of the respective electro-anatomical data subsets superimposed on corresponding ones of the 2D ultrasonic images captured by the ultrasound probe;
- wherein the respective representations include respective color-encoded lines or regions corresponding to local activation time (LAT) data or bipolar data;
- and
- wherein the respective representations superimposed over the 2D ultrasonic images are dynamically updated, in real time, in response to movement of the ultrasound probe within the body part, wherein the respective electro-anatomical data subsets change to reflect new positions of the corresponding ones of the 2D ultrasonic images in the shared 3D coordinate frame.
6 more elements
Dependencies are inferred from the claim text.