Method and device for determining rotation direction of VCG (vectorcardiogram) loop

Abstract

The invention discloses a method and a device for determining the rotation direction of a VCG (vectorcardiogram) loop, wherein the method comprises obtaining a parent loop to be determined and a starting point and an ending point of the parent loop to be determined; according to the recursive algorithm, determining whether there is a node on the parent loop to be determined based on the opening point and the ending point; if there is a node on the parent loop to be determined, dividing the parent loop to be determined into at least two nodeless sub-loops, namely, sub-loops with no node on theloop are nodeless sub-loops; according to the vector product algorithm, calculating the vector product of the nodeless sub-loops respectively, so as to determine the rotation direction of the parent loop to be determined through the modulus of the vector product of the nodeless sub-loops. The method can accurately determine the rotation direction of multi-8-shaped VCG loop.

Description

technical field [0001] The invention belongs to the technical field of electrocardiogram vector analysis, and in particular relates to a method and a device for judging the rotation direction of an electrocardiogram vector ring. Background technique [0002] In ECG vector analysis, judging the rotation direction of ECG vector ring is an important part. However, the running direction of the ECG vector ring at the mark in the ECG vector ring requires the doctor to observe each punctum with the naked eye, and the workload is relatively large. For the ECG vector ring with dense puncta, the observation time is normal. It is necessary to add a module to automatically determine the running direction of the ECG vector loop. [0003] In the prior art, for nodeless rings and single figure-of-eight rings, the vector product algorithm is mostly used to judge the rotation direction of the rings. However, for the ECG vector ring with more than 8 shapes, when the vector product algorithm...

AI Technical Summary

Problems solved by technology

However, for the multi-eight-shaped ECG vector ring, when the vector product algorithm is directly used to judge its rotation direction, due to the existence of multiple nodes, the judgment result is inaccurate

In addition, for an unknown ECG vector ring, since the type of the ECG vector ring cannot be judged, the algorithm directly using the vector product cannot accurately judge its rotation direction

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