Device and method for improving identification accuracy of fetal heart rate deceleration

摘要

A device and method for improving the identification accuracy of fetal heart rate deceleration. The method includes: collecting fetal heart rate data (101); performing baseline identification on the collected fetal heart rate data (102); preprocessing the collected fetal heart rate data (103); performing deceleration identification on the preprocessed fetal heart rate data according to preset deceleration judgment standards and a fetal heart rate data baseline to obtain a decelerated data segment (104); and calculating a deceleration attribute value of each decelerated data segment (105), and outputting the decelerated data segment and calculation result (106). The present invention can effectively eliminate the baseline variation part by employing methods such as the dynamic threshold area method, continuous wave peak detection and composite deceleration detection and so on, and accurately identify each deceleration and the type thereof, avoiding the defects of the existing method, which easily causes large deceleration identification errors but cannot identify continuous deceleration or eliminate baseline variation and cannot identify composite deceleration and so on. The solution in the present invention is not only suitable for the situation where deceleration occurs independently and is typical deceleration but also is suitable for the situation where continuous deceleration and composite deceleration occur.

主权项

1. A device for improving identification accuracy of fetal heart rate deceleration, wherein the device comprises a fetal heart rate data collection module, a fetal heart rate data baseline identification module, a fetal heart rate data preprocessing module, a fetal heart rate data deceleration identification module and an output module;
the fetal heart rate data collection module is used for collecting fetal heart data of a preset duration to obtain a fetal heart rate data sequence H(n); the fetal heart rate data baseline identification module is connected with the fetal heart rate data collection module to be used for receiving the fetal heart rate data sequence H(n) transmitted by the fetal heart rate data collection module and identifying a fetal heart rate baseline sequence B(n); the fetal heart rate data preprocessing module is connected with the fetal heart rate data collection module to be used for receiving the fetal heart rate data sequence H(n) transmitted by the fetal heart rate data collection module and preprocessing the sequence H(n) to obtain a fetal heart rate data sequence V(n); the fetal heart rate data deceleration identification module is connected with the fetal heart rate data baseline identification module and the fetal heart rate data preprocessing module to be used for receiving the fetal heart rate baseline sequence B(n) transmitted by the fetal heart rate data baseline identification module and the preprocessed sequence V(n) transmitted by the fetal heart rate data preprocessing module; and performing deceleration identification for the preprocessed fetal heart rate data sequence V(n) to obtain a decelerated data segment, according to preset deceleration judgment standards and the fetal heart rate data baseline sequence B(n), and the output module is connected with the fetal heart rate data deceleration identification module to be used for receiving and outputting the decelerated data segment transmitted by the fetal heart rate data deceleration identification module.