System and method to detect stable arrhythmia heartbeat and to calculate and detect cardiac mapping annotations

Patent metadata

Field	Value
Publication number	US-12239449-B2
Application number	US-202117341917-A
Country	US
Kind code	B2
Filing date	Jun 8, 2021
Priority date	Jun 10, 2020
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A system and method for detecting a mapping annotation for an electrophysiological (EP) mapping system. The system includes a processor comprising a machine learning algorithm configured to receive a first heartbeat at an identified cardiac spatial location including a first set of attributes information corresponding to the first heartbeat; receive a second heartbeat at the identified cardiac spatial location including a second set of attributes information corresponding to the second heartbeat; compare the first set of attributes information with the second set of attributes information; and determine which of the first heartbeat and the second heartbeat has optimal characteristics based on the compared attribute information.

First claim

What is claimed is:

1. A system for detecting a heartbeat with optimal characteristics for an electrophysiological (EP) mapping system that improves cardiac mapping annotations, the system comprising:
a memory;
a sensor; and
one or more processors communicatively coupled to the memory and the sensor, wherein the one or more processors are collectively configured to:
receive, from the sensor, a first heartbeat at an identified cardiac spatial location including first attribute information corresponding to the first heartbeat;
receive, from the sensor, a second heartbeat at the identified cardiac spatial location including a second attribute information corresponding to the second heartbeat;
perform a comparison of the first attribute information with the second attribute information, wherein the comparison includes comparing one or more of heart beat noise, local activation time (LAT), late potential, fractionation or body surface activation during a heart beat; and
determine a selected heartbeat from the first heartbeat and the second heartbeat based on the comparison, wherein the selected heartbeat is utilized in the cardiac mapping annotations.

2. The system of claim 1 , wherein the one or more processors are further collectively configured to:
output the selected heartbeat to the EP mapping system.

3. The system of claim 1 , wherein the one or more processors are further collectively configured to:
store, using the memory, at least one of the first heartbeat including the first attribute information and the second heartbeat including the second attribute information in a database.

4. The system of claim 3 , wherein the one or more processors are collectively configured to:
receive a first manual input that indicates to accept one of the first heartbeat and the second heartbeat from a physician, and
receive a second manual input from the physician that indicates to delete the other one of the first heartbeat and the second heartbeat at the same spatial location up to a threshold tolerance.

5. The system of claim 1 , wherein the comparison is performed using machine learning.

6. The system of claim 1 , wherein the first attribute information or the second attribute information comprises at least one of:
an intracardiac electrogram signal received by an electrode of a catheter;
an electrocardiogram signal received from a mapping electrode;
an electrocardiogram signal received by one or more body surface electrodes;
a tissue proximity indication (TPI) of the mapping electrode at a time of a reference annotation;
a force value detected by a force sensor of a mapping catheter;
a spatial location of the mapping electrode at the reference annotation;
a respiration status vector around the reference annotation;
a position of the reference annotation inside a respiration cycle;
a difference between a current respiration cycle length and a previous respiration cycle length;
a ratio of the current respiration cycle length and the previous respiration cycle length;
a difference between the current respiration cycle length and an average or median respiration cycle length;
a ratio of the current respiration cycle length and the average or median respiration cycle length;
an indication of whether a physician manually accepted a respective heartbeat into the EP mapping system or deleted the heartbeat; or
a distance of the mapping electrode at a current reference annotation from the spatial location of the same electrode at a previous reference annotation.

7. The system of claim 1 , wherein the comparison is a binary determination.

8. The system of claim 1 , wherein at least one of the comparison or determining the selected heartbeat is performed using a neural network.

9. The system of claim 8 , wherein the neural network is a convolutional neural network.

10. A method for detecting a heartbeat with optimal characteristics for an electrophysiological (EP) mapping system that improves cardiac mapping annotations, the method comprising:
receiving, from a sensor, first data comprising a first heartbeat at an identified cardiac spatial location including first attribute information corresponding to the first heartbeat;
receiving, from the sensor, second data comprising a second heartbeat at the identified cardiac spatial location including second attribute information corresponding to the second heartbeat;
performing a comparison of the first data with the second data, wherein the comparison includes comparing one or more of heart beat noise, local activation time (LAT), late potential, fractionation or body surface activation during a heart beat; and
outputting a selected heartbeat from among the first heartbeat and the second heartbeat based on the comparison, wherein the selected heartbeat is utilized in the cardiac mapping annotations.

11. The method of claim 10 , further comprising outputting the selected heartbeat to the EP mapping system.

12. A system for detecting a mapping annotation for an electrophysiological (EP) mapping system that improves cardiac mapping annotations, the system comprising:
a memory;
a sensory; and
one or more processors communicatively coupled to the memory, wherein the one or more processors are collectively configured to:
receive, from the sensor, input data comprising attribute data for each of a plurality of heartbeats obtained at the same spatial location;
perform a comparison of the attribute data for each of the plurality of heartbeats with predefined threshold values wherein the comparison includes comparing one or more of heart beat noise, local activation time (LAT), late potential, fractionation or body surface activation during a heart beat; and
determine a selected heartbeat to use as the mapping annotation from among the plurality of heart beats based on the comparison wherein the selected heartbeat is utilized in the cardiac mapping annotations.

13. The system of claim 12 , wherein the one or more processors are further collectively configured to:
output the selected heartbeat to the EP mapping system.

14. The system of claim 12 , wherein one of the plurality of heartbeats is manually acquired by a physician in the EP mapping system.

15. The system of claim 12 , wherein the comparison is performed using:
a machine learning algorithm.

16. The system of claim 12 , wherein the attribute data comprises at least one of:
an intracardiac electrogram signal received by an electrode of a catheter;
an electrocardiogram signal received from a mapping electrode;
an electrocardiogram signal received by one or more body surface electrodes;
a local annotation time of an acquired heartbeat;
a tissue proximity indication (TPI) of the mapping electrode at the time of a reference annotation;
a force value detected by a force sensor of a mapping catheter a spatial location of the mapping electrode at the reference annotation;
a respiration gating status;
a respiration status vector around the reference annotation;
a position of the reference annotation inside a respiration cycle;
a difference between a current respiration cycle length and a previous respiration cycle length;
a ratio of the current respiration cycle length and the previous respiration cycle length;
a difference between the current respiration cycle length and an average or median respiration cycle length;
a ratio of the current respiration cycle length and the average or median respiration cycle length;
an indication of whether a physician manually accepted a heartbeat into the EP mapping system or deleted the heartbeat;
an indication of whet

Assignees

• Biosense Webster Israel Ltd

Inventors

• Ravuna Eliyahu
• Botzer Lior
• Yarnitsky Jonathan
• Nakar Elad
• Katz Natan Sharon

Classifications

• A61B5/283

  Invasive · CPC title

• A61B5/339

  Displays specially adapted therefor · CPC title

• G06N3/0442

  characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU] · CPC title

• G06N3/09

  Supervised learning · CPC title

• G06N3/0464

  Convolutional networks [CNN, ConvNet] · CPC title