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QRS (quantum resonance spectrometer) wave detection method and device

A detection method and signal detection technology, which is applied in the field of medical electronics, can solve the problems of large time delay in QRS wave detection, missing the best time for nuclear magnetic resonance and heartbeat synchronization, etc.

Active Publication Date: 2015-11-25
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
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Problems solved by technology

For example, it is now desired to perform MRI when the heart is systolic to its lowest point. However, due to the large delay in QRS wave detection, when the QRS wave is detected and the heart is contracted to its lowest point according to the QRS wave, the heart has actually begun to relax. , thus missing the best time for MRI and heartbeat synchronization

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  • QRS (quantum resonance spectrometer) wave detection method and device
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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" a...

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Abstract

The invention discloses a QRS wave detection method and a detection device; the device comprises the following steps: acquiring the morphology information of a QRS wave through waveform morphology learning, wherein the morphology information comprises QRS wave slope, QRS wave width and QRS wave amplitude; according to the morphology information of the QRS wave, setting a morphology threshold, wherein the morphology threshold includes a QRS wave slope threshold, a QRS wave width threshold and a QRS wave amplitude threshold; detecting an inputted electrocardiogram signal according to the morphology threshold to obtain the QRS wave; and judging whether time delay exists in the detected QRS wave morphology information or not, if so, lowering the value of the morphology threshold. By virtue of the method, the time delay of QRS wave detection can be reduced.

Description

technical field [0001] The invention relates to the field of medical electronics, in particular to a QRS wave detection method and device. Background technique [0002] ECG signals usually include P waves, QRS waves, and T waves, and in a few cases U waves. Among them, the QRS wave can best reflect the state of the heartbeat, so the detection of the QRS wave plays an important role in many occasions. For example, when an MRI scan is performed on the chest and abdomen, artifacts will appear in the scan image due to the influence of the heartbeat, resulting in blurred scan images. At this time, it is necessary to perform QRS wave detection to obtain the condition of the heartbeat, so as to synchronize the MRI scan with the heartbeat and eliminate artifacts. [0003] In order to synchronize the MRI and the heartbeat, the time delay of the QRS wave detection must be sufficiently small; otherwise, even if the QRS wave is detected by the QRS wave detection, the best timing for t...

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Application Information

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IPC IPC(8): A61B5/0452
Inventor 关则宏洪俊标叶文宇罗申岑建
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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