System and methods to facilitate providing therapy to a patient

Patent metadata

Field	Value
Publication number	US-9750940-B2
Application number	US-201615250171-A
Country	US
Kind code	B2
Filing date	Aug 29, 2016
Priority date	Jul 5, 2011
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A method can include providing at least one parameter to control a therapy that is applied to at least one internal anatomical structure of a patient. Electrical data can be obtained from the patient, including electrical data acquired via a plurality of sensors during each of a plurality of iterations of the therapy. The electrical data can be analyzed for a respective value of the at least one parameter of the therapy at each of the plurality of iterations of the applied therapy to compute an indication of at least one function of the at least one internal anatomical structure of the patient at each respective iteration of the applied therapy. The computed indication can be stored in memory. At least one parameter of the therapy can be adjusted for delivery in a subsequent one of the plurality of iterations based on the indication of the at least one function.

First claim

What is claimed is:

1. A system comprising:
a sensor array comprising a plurality of sensors configured to measure electrical activity across a body surface of a patient and generate electrical data characterizing the measured electrical activity, wherein the plurality of sensors are arranged for placement at predetermined locations over the body surface to define at least one predetermined zone of the patient's body that maps deterministically to at least one predetermined region of interest of at least one internal anatomical structure of the patient; and
an analysis system configured to:
analyze the electrical data for the at least one predetermined zone to provide a surrogate estimate of electrical activity at the at least one predetermined region of interest; and
provide an output based on the surrogate estimate of electrical activity at the at least one predetermined region of interest.

2. The system of claim 1 , wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the analysis system is further configured to quantify an indication of synchrony for the at least one predetermined region of interest of the heart based on the surrogate estimate of electrical activity at the at least one predetermined region of interest to provide a quantitative assessment of the at least one function of the heart.

3. The system of claim 2 , further comprising a display configured to provide a graphical display of the quantified indication of synchrony on an image of the heart of the patient to enable assessment of the at least one function of the heart.

4. The system of claim 1 ,
wherein the analysis system is further configured to compute an indication of at least one function of the at least one predetermined region of interest based on the surrogate estimate of electrical activity at the at least one predetermined region of interest; and
wherein the system further comprises a display configured to provide a graphical representation of the computed indication of the at least one function on an image of the at least one internal anatomical structure of patient.

5. The system of claim 1 ,
wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the analysis system is further configured to provide the surrogate estimate of electrical activity at the at least one predetermined region of interest of the heart based on the electrical data without using an inverse method to reconstruct electrical signals on a cardiac envelope of the heart.

6. The system of claim 1 ,
wherein the predetermined zone includes a plurality of predetermined zones and the plurality of sensors corresponds to multiple sets of sensors; and
wherein each of the multiple sets of sensors is positioned over a location on the patient's body to define a respective zone of the patient's body that has been determined to map deterministically to a corresponding region of interest of the at least one internal anatomical structure of the patient.

7. The system of claim 6 , wherein the analysis system is further configured to analyze the electrical data measured by each of the multiple sets of sensors to compute an indication of at least one function for each corresponding region of interest.

8. The system of claim 7 , further comprising a display configured to provide an image of the at least one internal anatomical structure of the patient with indexes representative of the indications of the at least one function for each corresponding region of interest superimposed at corresponding regions of interest of the at least one internal anatomical structure on the display.

9. The system of claim 1 , wherein the analysis system is further configured to compute an indication of at least one function for the at least one predetermined region of interest of a patient's heart based on the electrical data without image-based geometry data of the patient.

10. The system of claim 1 , wherein,
wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the analysis system is further configured to process the electrical data using an inverse method to reconstruct electrical signals on a cardiac envelope of the heart corresponding to the at least one predetermined region of interest of the heart based on the electrical data.

11. The system of claim 10 , wherein the inverse method is further configured to reconstruct the electrical signals on the cardiac envelope of the heart based on the electrical data and geometry data for the patient's body obtained from an imaging modality.

12. A device comprising:
a processor; and
a non-transitory computer readable medium storing instructions that, when executed by the processor, cause the processor to:
obtain electrical data measured from a patient via a plurality of sensors, wherein the plurality of sensors are arranged for placement at predetermined locations over the patient's body to define at least one predetermined zone of the patient's body that maps deterministically to at least one predetermined region of interest of at least one internal anatomical structure of the patient;
analyze the electrical data to provide a surrogate estimate of electrical activity at the at least one predetermined region of interest for the at least one predetermined zone; and
compute an indication of at least one function of the at least one predetermined region of interest based on the surrogate estimate of electrical activity at the at least one predetermined region of interest.

13. The device of claim 12 ,
wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the instructions that cause the processor to compute the indication of at least one function further comprise quantifying an indication of synchrony for the at least one predetermined region of interest of the heart based on the surrogate estimate of electrical activity at the at least one predetermined region of interest to provide a quantitative assessment of the at least one function of the heart.

14. The device of claim 13 , further comprising a display configured to provide a graphical display of the quantified indication of at least one function on an image of the heart of the patient to facilitate assessment of the at least one function of the heart.

15. The device of claim 12 , further comprising a display configured to provide a graphical display of the computed indication of at least one function on an image of the at least one internal anatomical structure of patient.

16. The device of claim 12 ,
wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the processor is further configured to compute the surrogate estimate of electrical activity at the at least one predetermined region of interest of the heart directly from the electrical data obtained for the predetermined zone without using an inverse method to reconstruct electrical signals on a surface of the heart.

17. The system of claim 12 , wherein,
wherein the at least one internal anatomical structure of the patient corresponds to a heart of the patient; and
wherein the instructions that cause the processor to analyze the electrical data further comprise using an inverse method to reconstruct electrical signals on a cardiac envelope of the heart corresponding to the at least one predetermined region of interest of the heart based on the electrical data

Assignees

• Cardioinsight Technologies Inc
• Cardioisight Tech Inc

Inventors

• Ramanathan Charulatha
• Wodlinger Harold
• Jia Ping
• Strom Maria

Classifications

• A61B5/0036

  including treatment, e.g., using an implantable medical device, ablating, ventilating · CPC title

• G16H50/50

  for simulation or modelling of medical disorders · CPC title

• G16H40/63 Primary

  for local operation · CPC title

• A61N1/3684

  for stimulating the heart at multiple sites of the ventricle or the atrium · CPC title

• A61N1/36514

  controlled by a physiological quantity other than heart potential, e.g. blood pressure (controlled by two or more physical parameters A61N1/36585) · CPC title