Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram

an electrocardiogram and high frequency component technology, applied in the field of apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram, can solve the problems of not being able to quantify raz and using such quantities

Active Publication Date: 2014-01-09
BSP MEDICAL LTD
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables early detection of ACS, provides an indication of the initial state of a cardiac event, and monitors changes in the condition, offering improved diagnostic accuracy and treatment timing for cardiac patients.

Problems solved by technology

Although several studies have shown the correlation of RAZ and myocardial ischemia, there is currently no way of quantifying the RAZ and using such quantity in order to detect a heart condition such as for example, acute coronary syndrome (ACS) or infer the seriousness of a condition or changes in the condition.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram
  • Apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram
  • Apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056]The present invention, in some embodiments thereof, relates to quantification of the RAZ and use of that quantification to draw conclusions about the state of a patient's heart.

[0057]Embodiments provide an electrocardiograph with a wide bandwidth capability able to record and analyze high frequency signals with high resolution. The QRS complexes are detected in all the leads and throughout the entire duration of the test. The high frequency components of the QRS (HFQRS) are filtered to be further analyzed. If the signal to noise ratio (SNR) of the HFQRS is not sufficient for reliable analysis, as is many times the case, several wideband or unfiltered QRS complexes from the same lead are aligned and subsequently averaged to increase the SNR. The averaged signal is then filtered to obtain the HFQRS.

[0058]A low frequency envelope is computed for the HFQRS, and Reduced Amplitude Zones (RAZ) in this envelope are sought. Such RAZ can be depicted as basins and one or more may exist i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

ECG apparatus comprises an ECG input for obtaining ECG signals; a high frequency analyzer configured for obtaining high frequency QRS components from a QRS complex within said ECG signals and identifying therein at least one reduced amplitude zone—RAZ—present within a given QRS complex; and a RAZ quantifier configured for obtaining a quantification of said at least one RAZ region within said QRS complex.

Description

RELATED APPLICATION[0001]This application claims the benefit of priority under 35 USC §119(e) of U.S. Provisional Patent Application No. 61 / 667,482 filed Jul. 3, 2012, the contents of which are incorporated herein by reference in their entirety.FIELD AND BACKGROUND OF THE INVENTION[0002]The present invention, in some embodiments thereof, relates to an apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram, and more particularly but not exclusively to use of regions within the QRS complex known as reduced amplitude zones or RAZ.[0003]ECG is used to measure the rate and regularity of heartbeats, as well as the size and position of the chambers, the presence of any damage to the heart, and the effects of drugs or devices used to regulate the heart.[0004]ECG may be measured during rest (resting ECG) or when the heart is under stress (stress ECG).[0005]Usually more than two electrodes are used, and they can be combined i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A61B5/0472A61B5/366A61B5/308
CPCA61B5/7203A61B5/7264A61B5/7282A61B5/02028A61B5/7253G16H50/20A61B5/316A61B5/30A61B5/366
Inventor AMIT, GUYLURIA, ODEDTOLEDO, ERANGRANOT, YAIRBEN-DAVID, TAMIR
Owner BSP MEDICAL LTD