A method and system for identifying rotor sites in atrial fibrillation
A technology for identifying systems and sites, applied in the field of atrial fibrillation, can solve the problems of low electrode density, insufficient signal resolution to truly present the rotor, and low clinical success rate
Active Publication Date: 2021-07-20
武汉律创科技有限公司
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Problems solved by technology
The success rate of this method cannot be replicated by other centers at present, that is, the clinical real success rate is low. The main defect is that the electrode density is too low, and the resolution of the collected signal is not enough to truly present the essence of rotor electrical activity, resulting in a false positive rate. higher
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[0039] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0040] Such as figure 1 As shown, a method 100 for identifying rotor sites in atrial fibrillation, such as figure 1 shown, including:
[0041]Step 110. Obtain a preset number*M endocardial unipolar electrical signals and a preset number*M endocardial bipolar electrical signals from the database, wherein, the preset number*M endocardial unipolar electrical signals is the M endocardial unipolar electrical signals collected continuously for each site in the preset number of sites of the patient through the multi-polar standard electrode, and the endocardial bipolar electrical signals are the collected endocardial unipolar electrical signals The signal time corresponds to the synchronously collected endocardial bipola...
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The invention discloses a method and system for identifying atrial fibrillation rotor sites, comprising: obtaining a preset number*M endocardial unipolar electrical signals and endocardial bipolar electrical signals from a database, wherein the preset number *M endocardial unipolar electrical signals are the M endocardial unipolar electrical signals collected continuously at each site in the preset number of sites of the patient through the multipolar side electrode, and the endocardial bipolar electrical signals are The electric signal is collected synchronously when collecting the endocardial unipolar electric signal, and M is a positive integer. Based on the above-mentioned endocardial bipolar electrical signals, the mean circumference of AF and the frequency of AF at each site were determined. According to the order of the frequency of atrial fibrillation and the average circumference of each atrial fibrillation, the dispersion analysis of the M endocardial unipolar electrical signals at each site was performed sequentially to identify the atrial fibrillation rotor site. The invention adopts unipolar electric signals, has higher mapping density and more accurate recognition, increases the safety and success rate of radiofrequency ablation of atrial fibrillation, and simplifies the implementation process of rotor mapping.
Description
technical field [0001] The invention relates to the technical field of atrial fibrillation, in particular to a method and system for identifying a trochanteric site of atrial fibrillation. Background technique [0002] In 1998, French scientists first proposed the theory of pulmonary vein origin of atrial fibrillation, revealing that paroxysmal atrial fibrillation is triggered by pulmonary veins, and ablation of pulmonary vein ectopic excitation can achieve the purpose of treating paroxysmal atrial fibrillation. However, this theory completely ignores the maintenance mechanism of AF. Moreover, catheter ablation only electrically isolates the triggering mechanism of pulmonary veins, and does not intervene in the maintenance mechanism of atrial fibrillation, resulting in the recurrence rate of paroxysmal atrial fibrillation remaining at about 30%. In recent years, the rotor phenomenon proposed by Dr. Narayan in the United States can drive the existence of atrial fibrillation ...
Claims
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IPC IPC(8): A61B5/287A61B5/346A61B5/367A61B5/361
CPCA61B5/6869A61B5/72A61B5/316A61B5/318A61B5/287A61B5/361
Inventor 秦牧石少波
Owner 武汉律创科技有限公司