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Visualization of myocardial infarct size in diagnostic ECG

A technique for myocardial infarction, size, applied in the field of diagnostic electrocardiogram (ECG) systems, which can solve problems such as difficulties for non-experts

Active Publication Date: 2015-05-13
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Visualizing the way ECG vectors are generated in 3D is intuitive for ECG experts but very difficult for non-experts

Method used

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  • Visualization of myocardial infarct size in diagnostic ECG
  • Visualization of myocardial infarct size in diagnostic ECG
  • Visualization of myocardial infarct size in diagnostic ECG

Examples

Experimental program
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Embodiment Construction

[0018] first reference figure 1 , illustrating in block diagram form a display system for ultrasound images and ECG lead traces. The main subsystems of the ultrasound system are shown at the top of the figure. An ultrasound probe 10 having an array transducer 12 transmits ultrasound waves to a patient's heart and receives echoes in response. Echo signals received by individual transducer elements of the array are processed by a beamformer 14 to form coherent echo signals related to specific points in the body. The echo signal is processed by a signal processor 16 . Signal processing may include separation of harmonic echo signal components, eg for harmonic imaging and clutter removal. The processed signal is arranged by an image processor 18 into an image in the desired format. The image is displayed on the ultrasound system display 20 . in movie playback A live image playback loop is stored in the memory 22 for later recall for analysis.

[0019] The ultrasound images...

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Abstract

The segments of an anatomically corresponding bull's eye graph familiar to echocardiologists is annotated by coloring those segments for which ECG data indicates the presence of myocardial infarction injury. In an illustrated example, segments are colored with a second color when the ECG data corresponding to those segments are indicated as being the site of a coronary occlusion. The segments of the bull's eye graph may be colored in a third color with the results of a diagnostic imaging exam, such as by coloring segments exhibiting wall motion abnormalities with a third color.

Description

technical field [0001] The present invention relates to diagnostic electrocardiogram (ECG) systems and, in particular, to diagnostic ECG systems that visualize myocardial infarct size in a manner familiar to professionals in medical diagnostic imaging, such as MRI, CT, ultrasound, and nuclear medicine. Background technique [0002] Diagnostic ECG records and analyzes ECG signals received simultaneously on multiple leads. The number of leads is generally twelve to eighteen, and lead signals are generated based on body electrical signals received by ten to sixteen electrodes. The size of myocardial infarction (MI) can be estimated by ECG characteristics such as deepened Q wave, reduced R wave amplitude, elevated ST segment and inverted T wave in various leads. The larger the infarct size, the greater the number of leads showing this abnormal property. [0003] Numerical MI scores can be generated from these results for reference by cardiologists or emergency physicians in tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/04G06F19/00
CPCA61B8/0858A61B5/341
Inventor R·E·格雷格S·H·周
Owner KONINK PHILIPS ELECTRONICS NV