Multi-parameter physiological mapping to a multi-dimensional color model

Patent metadata

Field	Value
Publication number	US-11880955-B2
Application number	US-201916659154-A
Country	US
Kind code	B2
Filing date	Oct 21, 2019
Priority date	Jan 17, 2013
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A map generator can be programmed to generate a multi-parameter graphical map by encoding at least two different physiological parameters for a geometric surface, corresponding to tissue of a patient, using different color components of a multi-dimensional color model such that each of the different physiological parameters is encoded by at least one of the different color components.

First claim

What is claimed is:

1. One or more non-transitory computer-readable media having data and machine readable instructions executable by a processor, the data comprising electroanatomical data corresponding to electrophysiological signals measured by a plurality of sensors from tissue of a patient, the machine readable instructions comprising a mapping system that comprises:
a physiological parameter calculator programmed to:
compute a first set of physiological parameter data based on the electroanatomical data;
encode the first set of physiological parameter data to a first color component representing a dimension of a multi-dimensional color model;
compute a second set of physiological parameter data different from the first set of physiological parameter data based on the electroanatomical data; and
encode the second set of physiological parameter data to a second color component representing another dimension of the multi-dimensional color model; and

a map generator programmed to generate output data corresponding to a multi-parameter graphical map for a geometric surface corresponding to the tissue of the patient by mapping the first and second set physiological parameter data to respective color components of the multi-dimensional color model, wherein the mapping system is programmed to:
provide the output data to a display device for displaying the multi-parameter graphical map in which the first and second set of physiological parameter data are visualized in different dimensions of the multi-dimensional color model.

2. The one or more media of claim 1 , wherein the mapping system is further programmed to provide the output data to a therapy system for delivery of a therapy to the patient and configure one or more control parameters for the delivery of the therapy to the tissue of the patient based on the output data.

3. The one or more media of claim 2 , wherein the mapping system is further programmed to update the one or more control parameters intraoperatively during the delivery of the therapy based on one or more changes to the output data reflected in the multi-parameter graphical map.

4. The one or more media of claim 3 , wherein the therapy comprises an ablation therapy, wherein the ablation therapy is delivered to the patient by applying one or more heating, cooling and high-frequency.

5. The one or more media of claim 2 , wherein:
the first and the second set of physiological parameter data comprises a respective one of phase data, magnitude data, envelope data, voltage change data, derivative data and uncertainty data; and
the physiological parameter calculator being programmed to compute the phase data, the magnitude data, the envelope data, the voltage change data, the derivative data and the uncertainty data based on the electroanatomical data.

6. The one or more media of claim 2 , wherein:
the first set of physiological parameter data corresponds to phase data;
the physiological parameter calculator is further programmed to compute the phase data for each of a plurality of points of the geometric surface corresponding to the tissue based on the electroanatomical data for at least one-time interval;
the second set of physiological parameter data corresponds to magnitude data; and
the physiological parameter calculator is further programmed to compute the magnitude data for each of the plurality of points of the geometric surface corresponding to the tissue based on the electroanatomical data for the at least one-time interval.

7. The one or more media of claim 2 , wherein the mapping system is programmed to provide the output data to the display device during the delivery of the therapy to the patient.

8. The one or more media of claim 1 , wherein the map generator is further programmed to normalize the first set physiological parameter data or the second set of physiological parameter data to a predetermined scale.

9. The one or more media of claim 8 , wherein the mapping system is further programmed to receive a user input and the map generator is programmed to adjust a property of the normalizing based on the user input.

10. The one or more media of claim 1 , wherein the mapping system further comprises a multi-dimensional color model selector, the multi-dimensional color model selector being programmed to select a given multi-dimensional color model from a plurality of multi-dimensional color models stored in the memory, the given multi-dimensional color model corresponding to the multi-dimensional color model.

11. The one or more media of claim 10 , wherein the given multi-dimensional color model is a hue, saturation and value (HSV) color model.

12. The one or more media of claim 11 , wherein the first set of physiological parameter data is encoded to a hue component of the HSV color model and the second set of physiological parameter data is encoded to a saturation component of the HSV color model.

13. The one or more media of claim 12 , wherein:
the first set of physiological parameter data corresponds to phase data;
the second set of physiological parameter data corresponds to magnitude data; and
the phase data is encoded to the hue component and the magnitude data is encoded to the saturation component.

14. The one or more media of claim 1 , wherein the multi-dimensional color model is a hue, saturation and luminance (HSL) color model.

15. A system comprising:
memory to store machine readable instructions and data comprising electroanatomical data corresponding to electrophysiological signals measured by a plurality of sensors from tissue of a patient; and
at least one processor configured to access the memory and execute the machine readable instructions, the machine readable instructions causing the processor to:
compute a first set of physiological parameter data based on the electroanatomical data;
encode the first set of physiological parameter data to a first color component representing a dimension of a multi-dimensional color model;
compute a second set of physiological parameter data different from the first set of physiological parameter data based on the electroanatomical data;
encode the second set of physiological parameter data to a second color component representing another dimension of the multi-dimensional color model;
generate output data corresponding to a multi-parameter graphical map for a geometric surface corresponding to the tissue of the patient by mapping the first and the second set of physiological parameter data to respective color components of the multi-dimensional color model; and
provide the output data to a display device for displaying the multi-parameter graphical map in which the first and second set of physiological parameter data are visualized in different dimensions of the multi-dimensional color model.

16. The system of claim 15 , wherein the machine readable instructions further cause the processor to provide the output data to a therapy delivery system for delivering a therapy to the patient.

17. The system of claim 16 , wherein to provide the output data comprises updating one or more control parameters for delivery of the therapy to one or more locations of the tissue of the patient.

18. The system of claim 17 , wherein the machine readable instructions further cause the processor to update the one or more control parameters intraoperatively during the delivery of the therapy based one or more changes to the output data reflected in the multi-parameter graphical map.

19. The system of claim 15 , wherein:
the multi-parameter graphical m

Assignees

• Cardioinsight Technologies Inc

Inventors

• Zeng Qingguo
• Ramanathan Charulatha
• Vasudevan Venkatesh
• Dubois Rémi
• Jia Ping

Classifications

• G06T11/10

  Texturing; Colouring; Generation of textures or colours (retouching, inpainting or scratch removal G06T5/77) · CPC title

• A61B5/339

  Displays specially adapted therefor · CPC title

• A61B5/333

  Recording apparatus specially adapted therefor · CPC title

• G06T19/20 Primary

  Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts · CPC title

• A61B5/369

  Electroencephalography [EEG] · CPC title