Method for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves and device thereof

A technology for quantitative assessment and cardiac function, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve the problems that patients do not have a high degree of discrimination and cannot bear the risk of testing, and achieve low detection costs, easy operation, and convenient portability Effect

Pending Publication Date: 2020-06-16
何乐
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, 6MWT does not have a high degree of discrimination for heart failure patients with mild symptoms, and patients with severe symptoms cannot bear the risk of testing

Method used

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  • Method for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves and device thereof
  • Method for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves and device thereof
  • Method for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves and device thereof

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Experimental program
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Embodiment example

[0082] Let the volunteers rest fully, and then use a standard 12-lead electrocardiograph to measure the ECG of the volunteers in the supine position and the left decubitus position. Finally, the volunteers were asked to take a sitting position, and after the electrocardiogram electrodes were attached, an air bag that could be inflated and pressurized was wrapped around the entire chest outside the electrodes. This air bag does not affect the shape of the ribcage when not inflated. When inflated and pressurized, the chest cavity is compressed and becomes smaller. Measure the electrocardiogram under the two conditions of not inflating and inflating and pressurizing to 50kPa. The main interference of the ECG waveform comes from the baseline drift caused by the electrical activity of the muscles with a frequency of 2Hz-2kHz and the volunteer's respiratory coupling. In order to eliminate interference, we let the volunteers fully rest before the measurement, try to relax during th...

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Abstract

The invention discloses a method for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves and a device thereof, which relates to the field of cardiac function evaluation. By changing the cardiac apex pulsation state, the U-wave amplitude and the T-wave amplitude of an electrocardiogram in different cardiac apex pulsation states are measured, and the differencebetween the combined parameter of the U-wave amplitude and the T-wave amplitude and a normal value in a healthy state is compared, so that the cardiac function is evaluated. The method is simple, rapid, easy to operate and low in detection cost, a subject does not have any discomfort or side effect, and the method can be used for screening early cardiac dysfunction. The cardiac function evaluationequipment is small in size and convenient to carry and operate.

Description

technical field [0001] The invention relates to the field of cardiac function evaluation, in particular to a method and device for quantitatively evaluating cardiac function based on electrocardiogram U waves and T waves. Background technique [0002] The clinical diagnostic value of ECG U wave has been paid more and more attention. Abnormal U waves not only indicate a variety of heart diseases and hypertension, but also may be related to drug treatment and even affected by tumor size. Major cardiac organizations such as the American Heart Association (AHA) and the Heart Rhythm Society (HRS) recommend that all U wave abnormalities should be reported when interpreting an ECG. [0003] Although U-waves were discovered more than 100 years ago, their mechanism of action remains unclear. This is regrettable given the rapid developments in electrophysiology and mapping of body surface potentials. There are several hypotheses about the mechanism of U-wave formation: repolarizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0402A61B5/0452A61B5/00
CPCA61B5/7271A61B5/316A61B5/349A61B5/318
Inventor 不公告发明人
Owner 何乐
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