System and method for noninvasive electrocardiographic imaging (ECGI)

Active Publication Date: 2009-02-26
CASE WESTERN RESERVE UNIV +1
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  • Abstract
  • Description
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  • Application Information

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Benefits of technology

[0010] The inventors herein believe that the improved performance of MFS ECGI relative to BEM ECGI opens wide new windows of opportunity for noninvasive ECGI, particularly in connection with medical applications where time is of the essence such as interventional medical applications (including but not limited to ablation of arrhythmia substrates, targeted drug delivery, lead placement for implanted devices such as pacemakers and implanted cardioverters/defibrillators (ICDs), and other surgical procedures), guidance of interventional medical applications, evaluation of drug effect, risk stratification, and exercise stress tests. Even in less time cr

Problems solved by technology

This 3D surface meshing is an iterative time-consuming task that requires large memory resources.
However, this initial mesh will often need to be optimized to improve its accuracy, thereby further adding to the time required to accurately reconstruct the surface potentials and, in turn, further detracting from BEM ECGI's applicability to clinical applications.
Moreover, the skill level required to optimize body surface

Method used

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  • System and method for noninvasive electrocardiographic imaging (ECGI)
  • System and method for noninvasive electrocardiographic imaging (ECGI)
  • System and method for noninvasive electrocardiographic imaging (ECGI)

Examples

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Example

[0027]FIG. 1 depicts a block diagram overview of a preferred system 100 for performing meshless noninvasive ECGI. The system 100 preferably comprises a plurality of electrodes 104 (mounted on strips 102, a vest, or in some other array) in communication with a signal acquisition and processing device 106. The electrodes 104 serve to sense a plurality of electrical potentials on a patient's body surface. The signal acquisition and processing device 106 operates to process this sensed data to a form suitable for digital processing, as is known in the art. The system 100 also comprises a geometry determining device 116 that serves to generate data that is indicative of the geometrical relationship between the electrodes 104 and one or more points of interest within the patient (e.g., the patient's epicardial cardiac surface).

[0028] Processor 114 operates to (1) receive data from both the electrodes 104 (by way of the signal acquisition and processing device 106) and the geometry determ...

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Abstract

Noninvasive systems and methods are provided for determining electrical activity for a heart of a living being. A processor is configured to meshlessly compute data that represents heart electrical activity from a set of noninvasively measured body surface electrical potentials. This is accomplished using data that describes a geometric relationship between a plurality of locations corresponding to where the body surface electrical potentials were measured and the heart.

Description

RELATED APPLICATION [0001] The present application claims priority to U.S. Provisional Application No. 60 / 701,626 file Jul. 22, 2005, which is incorporated herein by reference in its entirety.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under NIH-NHLBI Grant R37-HL-33343 awarded by the National Institutes of Health (NIH). The government may have certain rights in the inventionFIELD OF THE INVENTION [0003] This invention relates to an improved technique for noninvasive electrocardiographic imaging (ECGI). In particular, the preferred embodiment of the present invention relates to a meshless noninvasive ECGI technique wherein a plurality of body surface potentials are noninvasively obtained and combined with data representing the geometry of a heart and body torso to generate electrocardiographic images that represent electrical activity of the heart. BACKGROUND OF THE INVENTION [0004] Over 7 million people worl...

Claims

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Application Information

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IPC IPC(8): A61L2/10B01J19/12
CPCA61L2/10A61L9/20A61L9/015A61L2/202A61B5/055A61B6/03A61B5/0044A61B5/282A61B5/318
Inventor RUDY, YORAMWANG, YONGJIA, PING
Owner CASE WESTERN RESERVE UNIV
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