Assessment of Hemodynamic Function In Arrhythmia Patients

Patent metadata

Field	Value
Publication number	US-2016228014-A1
Application number	US-201615015373-A
Country	US
Kind code	A1
Filing date	Feb 4, 2016
Priority date	Feb 6, 2015
Publication date	Aug 11, 2016
Grant date	—

Abstract

Electrocardiogram (ECG)-gated cardiac magnetic resonance imaging (MRI) alone may be unable to capture the hemodynamics associated with arrhythmic events. As a result, values such as ejection fraction are acquisition dependent. The desired RR-duration determines the arrhythmia rejection. By combining real-time volume measurements with ECG recordings, beat morphologies can be categorized and a more comprehensive evaluation of ventricular function during arrhythmia can be provided.

First claim

What is claimed:

1 . A method for evaluating hemodynamic function of the heart by:
obtaining continuous cardiac imaging data; obtaining physiologic data synchronous to the cardiac imaging data; analyzing the physiologic data to determine multiple observed cardiac contraction morphologies; and estimating hemodynamic information for each of the cardiac contraction morphologies using the cardiac imaging data.

2 . The method of claim 1 , wherein estimating the hemodynamic information includes estimating global hemodynamic information for each beat morphology by combining regional hemodynamic estimates.

3 . The method of claim 2 , wherein the cardiac imaging data is used to obtain the regional hemodynamic information.

4 . The method of claim 3 , further comprising producing a comprehensive hemodynamic quantification report based on observed beat morphologies and global hemodynamic information.

5 . The method of claim 1 , wherein the cardiac imaging data is heart chamber imaging data.

6 . The method of claim 5 , wherein the heart chamber imaging data is magnetic resonance imaging (MRI) data.

7 . The method of claim 1 , wherein the continuous cardiac imaging data is a two-dimensional 2D multi-slice MRI acquisition.

8 . The method of claim 1 , wherein the cardiac imaging data is a 2D golden angle radial acquisition.

9 . The method of claim 1 , wherein the physiologic data is a heart signal.

10 . The method of claim 1 , wherein the physiologic data is electrocardiogram (ECG) data.

11 . The method of claim 1 wherein the cardiac imaging data is 2D slice imaging data allows for regional evaluation of contraction and conduction patterns

12 . A computer adapted to evaluate hemodynamic function of the heart, the computer including a memory and a processor, the processor adapted to:
obtain continuous cardiac imaging data; obtain physiologic data synchronous to the cardiac imaging data; analyze the physiologic data to determine multiple observed cardiac contraction morphologies; and estimate hemodynamic information for each of the cardiac contraction morphologies using the cardiac imaging data.

13 . The computer of claim 12 , wherein estimating the hemodynamic information includes estimating global hemodynamic information for each beat morphology by combining regional hemodynamic estimates.

14 . The computer of claim 13 , wherein the cardiac imaging data is used to obtain the regional hemodynamic information.

15 . The computer of claim 13 , further comprising producing a comprehensive hemodynamic quantification report based on observed beat morphologies and global hemodynamic information.

16 . The computer of claim 12 , wherein the cardiac imaging data is heart chamber imaging data.

17 . The computer of claim 12 , wherein the heart chamber imaging data is magnetic resonance imaging (MRI) data.

18 . The computer of claim 12 , wherein the continuous cardiac imaging data is a two-dimensional 2D multi-slice MRI acquisition.

19 . The computer of claim 12 , wherein the cardiac imaging data is a 2D golden angle radial acquisition.

20 . The computer of claim 12 , wherein the physiologic data is a heart signal.

Assignees

• Univ Pennsylvania

Inventors

• Witschey Walter
• Contijoch Francisco
• Gorman Robert
• Han Yuchi

Classifications

• G16H30/40

  for processing medical images, e.g. editing · CPC title

• A61B5/7289

  Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition · CPC title

• A61B5/0044

  for the heart · CPC title

• A61B5/055

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• A61B5/02028 Primary

  Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction · CPC title