Enhanced visualization of organ electrical activity

Patent metadata

Field	Value
Publication number	US-11844616-B2
Application number	US-202016986871-A
Country	US
Kind code	B2
Filing date	Aug 6, 2020
Priority date	Aug 13, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

Methods, apparatus, and systems for medical procedures are disclosed herein and include sensing a plurality of tissue electrical potentials at an organ area of an organ, by one or more electrodes on a catheter, determining a number of peak electrical potentials from the plurality of first tissue electrical potentials such that the a peak electrical potential exceeds a potential threshold, determining a first visual characteristic based on the number of peak electrical potential and displaying a rendering of the organ comprising the organ area such that the rendering of the first organ area comprises the first visual characteristic.

First claim

What is claimed is:

1. A method comprising:
sensing a plurality of first tissue electrical potentials at a first organ area of an organ, by one or more electrodes on a catheter;
determining a number of first peak electrical potentials from the plurality of first tissue electrical potentials wherein the number of first peak electrical potentials includes at least a subset of the plurality of first tissue electrical potentials that exceed a potential threshold;
determining a first visual characteristic based on the number of first peak electrical potentials;
determining a scar area by at least using the number of first peak electrical potentials to determine a number of electrical potentials that are greater than the potential threshold and less than a scar threshold;
determining a third visual characteristic based on the scar area; and
displaying a rendering of the organ comprising the first organ area such that the rendering of the first organ area comprises the first visual characteristic, and the third visual characteristic.

2. The method of claim 1 , wherein the first visual characteristic is selected from one of a color, a texture, a pattern, a gradient, an indicator, and a graphic.

3. The method of claim 1 , wherein the first visual characteristic is determined based on predetermined ranges.

4. The method of claim 1 , further comprising:
sensing a plurality of second tissue electrical potentials at a second organ area of the organ, by the one or more electrodes on the catheter;
determining a number of second peak electrical potentials from the plurality of second tissue electrical potentials such that a second peak electrical potential exceeds the potential threshold;
determining a second visual characteristic based on the number of second peak electrical potentials; and
displaying the rendering of the organ comprising the second organ area such that the rendering of the second organ area comprises the second visual characteristic.

5. The method of claim 4 , wherein the first visual characteristic is a first color and the second visual characteristic is a second color.

6. The method of claim 4 , wherein the first visual characteristic is based on a ratio between the number of first peak electrical potentials and the number of second peak electrical potentials.

7. The method of claim 4 , wherein a count of the plurality of first tissue electrical potentials and a count of the plurality of second tissue electrical potentials is the same.

8. The method of claim 4 , wherein a first duration of time spent sensing the plurality of first tissue electrical potentials is the same as a second duration of time spent sensing the second tissue electrical potentials.

9. The method of claim 1 , wherein determining the first visual characteristic is further based on one or more neighboring peak electrical potentials.

10. The method of claim 9 , wherein the one or more neighboring peak electrical potentials corresponds to one or more neighboring points within a region surrounding the first organ area.

11. A method comprising:
sensing, for a first duration of time, a plurality of first tissue electrical potentials at a first organ area of an organ, by one or more electrodes on a catheter;
determining a first electrical potential time, such that the first electrical potential time is a subset of time of the first duration of time, that the first tissue electrical potentials exceed an electrical potential threshold;
determining a first visual characteristic based on the first electrical potential time;
determining a scar area from at least the first electrical potential time to determine a number of electrical potentials that are greater than the electrical potential threshold and less than a scar time threshold;
determining a third visual characteristic based on the scar area; and
displaying a rendering of the organ comprising the first organ area such that the rendering of the first organ area comprises the first visual characteristic, and the third visual characteristic.

12. The method of claim 11 , wherein the first visual characteristic is selected from one of a color, a texture, a pattern, a gradient, an indicator, and a graphic.

13. The method of claim 11 , wherein the first visual characteristic is determined based on predetermined time ranges.

14. The method of claim 11 , further comprising:
sensing, for a second duration of time, a plurality of second tissue electrical potentials at a second organ area of the organ, by the one or more electrodes on the catheter;
determining a second electrical potential time, such that the second electrical potential time is a subset of time, from the second duration of time, that the second tissue electrical potential exceeds the potential threshold;
determining a second visual characteristic based on the second electrical potential time; and
displaying the rendering of the organ comprising the second organ area such that the rendering of the second organ area comprises the second visual characteristic.

15. The method of claim 14 , wherein the first visual characteristic is based on a ratio between the first electrical potential time and the second electrical potential time.

16. The method of claim 14 , wherein the first visual characteristic is further based on the electrical potential time divided by the first duration of time.

17. The method of claim 11 , wherein determining the first visual characteristic is further based on one or more neighboring peak electrical potentials.

18. A system comprising:
a catheter comprising one or more electrodes and configured to sense a plurality of first tissue electrical potentials at a first organ area of an organ;

a processor configured to:
receive the plurality of first tissue electrical potentials;
determine a number of first electrical potentials from the plurality of first tissue electrical potentials such that the number of first peak electrical potentials includes at least a subset of the plurality of first tissue electrical potentials that exceed a potential threshold;
determine a first visual characteristic based on the number of first electrical potentials;
determine a scar area by at least using the number of first peak electrical potentials to determine a number of electrical potentials that are greater than the potential threshold and less than a scar threshold;
determine a third visual characteristic based on the scar area; and
a display configured to render the organ comprising the first organ area such that the render of the first organ area comprises the first visual characteristic, and the third visual characteristic.

19. The system of claim 18 wherein the display is at least one of a television, monitor, mobile device, and hologram.

20. The system of claim 18 , wherein the catheter is one of a single electrode and a multi electrode catheter.

Assignees

• Biosense Webster Israel Ltd

Inventors

• Itah Refael
• Turgeman Aharon
• Melby Daniel
• Hayam Gal
• Bar-On Tal

Classifications

• A61B5/283

  Invasive · CPC title

• A61B5/343

  Potential distribution indication · CPC title

• A61B5/287 Primary

  Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS] · CPC title

• A61B5/339

  Displays specially adapted therefor · CPC title

• A61B5/6859

  with multiple distal splines · CPC title