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Fetus-quiet-sleep-cycle extraction method based on fetus heart rate curve

A fetal heart rate and sleep cycle technology, applied in the field of biomedical signal processing, can solve the problems of insufficient information extraction of fetal quiet sleep cycle, insufficient accuracy of fetal heart rate signal analysis and research, etc.

Active Publication Date: 2016-11-09
BEIJING UNIV OF TECH +1
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AI Technical Summary

Problems solved by technology

[0003] At present, the evaluation of fetal heart rate signal quiet sleep cycle is mainly determined by manual measurement and calculation of monitoring graphics and naked eye recognition. The analysis and research of fetal heart rate signal is not accurate enough, and the information contained in fetal quiet sleep cycle is extracted. not enough

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  • Fetus-quiet-sleep-cycle extraction method based on fetus heart rate curve

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Embodiment Construction

[0030] A more typical specific implementation manner of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] A typical application scenario of the present invention is to use the measured signal of electronic fetal heart rate monitoring to obtain the fetal quiet sleep cycle and its characteristic parameters. Therefore, the mature technology of collecting fetal heart rate signals by the existing electronic fetal heart rate monitor and the identification method of the fetal quiet sleep cycle can be used to obtain more objective and comprehensive characteristic information about the fetal quiet sleep cycle.

[0032] like figure 2 As shown, take a subject who is 29 years old and has a gestational age of 39 weeks as an example.

[0033] In step T1, the system starts to receive the signal F(t) actually measured by the electronic fetal heart rate monitor, and extracts the fetal heart rate signal f(t) from F(t).

[0034] Step...

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Abstract

The invention discloses a fetus-quiet-sleep-cycle extraction method based on a fetus heart rate curve. A signal input module, a deceleration identifying module, a quiet-sleep-cycle identifying module and a result output module are adopted in the fetus-quiet-sleep-cycle extraction method, wherein in the signal input module, signal pretreating and deceleration fragment extracting are carried out; in the fetus-quiet-sleep-cycle identifying module, effective signal selecting, parameter calculating and quiet-sleep-cycle identifying are carried out; output results include parameters such as the number of quiet-sleep-cycle times, the longest duration and average duration. According to the fetus-quiet-sleep-cycle extraction method, by means of original data obtained through a fetal heart monitor, the fetus-quiet-sleep cycle can be extracted, relative parameters can be output, and the reading efficiency of an electronic fetal heart monitoring graph can be effectively improved.

Description

technical field [0001] The invention relates to the field of biomedical signal processing, in particular to a method for extracting fetal quiet sleep cycles based on fetal heart rate curves in electronic fetal heart rate monitoring. Background technique [0002] Electronic fetal heart rate monitoring technology is widely used in obstetrics to monitor fetal heart rate, and it is an important method to understand fetal intrauterine conditions and fetal reserve capacity. Among them, the non-stress test (non-stress test, NST) is mainly used for prenatal monitoring, and the fetal heart rate is monitored for 20 to 40 minutes and the fetal heart rate pattern obtained is recorded. The fetal heart rate curve contains a wealth of information about the fetal nerve and cardiovascular function, and its comprehensive information in terms of shape, amplitude strength and certain periodicity reflects the physiological state of the fetus in utero to a considerable extent. . The quiet sleep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024A61B5/0245A61B5/00
CPCA61B5/02411A61B5/0245A61B5/4812A61B5/7225A61B5/725
Inventor 张松李广飞杨琳杨益民李旭雯郝冬梅王妍李淑芳张蕾
Owner BEIJING UNIV OF TECH
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