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Vector magnetocardiography method and vector magnetocardiographic system

A magnetocardiogram and vector technology, applied in the field of vector magnetocardiogram and vector magnetocardiogram system, to achieve the effect of solving system dependence

Inactive Publication Date: 2018-10-23
BIOMAGNETIK PARK
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  • Abstract
  • Description
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Problems solved by technology

However, source space mapping has similar disadvantages to sensor space mapping and also introduces additional errors from pseudoinverse solutions

Method used

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  • Vector magnetocardiography method and vector magnetocardiographic system
  • Vector magnetocardiography method and vector magnetocardiographic system
  • Vector magnetocardiography method and vector magnetocardiographic system

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Embodiment Construction

[0052] figure 1 A standard pseudocurrent map of a 20×20 source grid, using 13 eigenvalues, is shown for finding the best position for the ESMS. The pseudo-current map is created from data measured during the R-peak of sinus rhythm. The circled area indicates the region of the strongest electrical activity during the R-peak.

[0053] figure 2 VMCG of healthy subjects is depicted in . The large circle indicated by reference numeral 1 represents the QRS complex and includes the R peak 2 and the small circle 3 represents the T peak.

[0054] image 3 show figure 2 2-D plot of the VMCG in , corresponding to an equivalent single current source (ESCS). Such a representation is particularly advantageous to facilitate angular measurements, ie changes in the direction of the MHV / EHV. Q, R, S, T, and even P waves are visible. The P wave at 125ms is indicated by the number 5, the R peak at 200ms is indicated by the number 2, and the T wave at 339ms max Represented by the number...

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Abstract

The invention relates to a vector magnetocardiography method and a vector magnetocardiographic system carrying out the method. It is an object of the invention to provide an improved magnetocardiographic method, in particular in view of diagnosing ischemic heart disease. The method of the invention involves the calculation of the direction of an equivalent single current source ESCS or equivalentsingle magnetic source ESMS in relation to a reference direction which is independent of patient or heart position in order to compute a vector magnetocardiogram.

Description

technical field [0001] The present invention relates to a vector magnetocardiography method and a vector magnetocardiography system for performing the method. Background technique [0002] Magnetocardiography (MCG) is a method of non-invasively recording the magnetic field generated by the electrical activity of the heart, which can be used, for example, in the clinical diagnosis of heart disease, such as ischemic heart disease (IHD, see for example [2], [8 ], [10], [13], [14]). [0003] Despite its current regular use, magnetocardiography still has considerable deficiencies, especially when diagnosing IHD. Traditionally, parameters used for diagnosis such as field gradients [6], magnetic map angles [12] and analysis of different parts of the butterfly diagram [7] have been represented in sensor space. A major disadvantage of analyzing all parameters in the sensor space is system dependence, that is, it is not possible to make direct comparisons between different magnetoca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/04A61B5/00A61B5/352
CPCA61B5/7253A61B5/7278A61B5/243A61B5/341A61B5/352
Inventor 金丙秀马尔特·埃伦
Owner BIOMAGNETIK PARK
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