A kind of QRS wave detection method and device
A detection method and technology for detecting signals, applied in the field of medical electronics, can solve the problems of missing the best timing for MRI and heartbeat synchronization, and the large delay of QRS wave detection.
Active Publication Date: 2019-01-22
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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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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[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall 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. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be unders...
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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, and in particular to a QRS wave detection method and device. Background technique [0002] ECG signals usually include P wave, QRS wave and T wave, and in a few cases also U wave. Among them, QRS wave can best reflect the condition of heartbeat. Therefore, QRS wave detection plays an important role in many occasions. For example, when performing an MRI scan on the chest and abdomen, affected by the heartbeat, artifacts will appear in the scanned image from the MRI scan, causing the scanned image to be blurred. At this time, QRS wave detection is needed to obtain the condition of the heartbeat, so that the MRI scan can be synchronized with the heartbeat, and artifacts can be eliminated. [0003] In order to synchronize the MRI and the heartbeat, the time delay of QRS wave detection must be small enough, otherwise, even if QRS wave detection detects the QRS wave, it will miss the best time for MRI and...
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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