Recovery of signal loss adopting the residual bootstrap method in fetal heart rate dynamics
- Title
- Recovery of signal loss adopting the residual bootstrap method in fetal heart rate dynamics
- Author
- 박영선
- Keywords
- fetal heart rate; nonlinear dynamics; residual bootstrap; signal loss
- Issue Date
- 2019-04
- Publisher
- WALTER DE GRUYTER GMBH
- Citation
- BIOMEDICAL ENGINEERING-BIOMEDIZINISCHE TECHNIK, v. 64, NO 2, Page. 157-161
- Abstract
- Fetal heart rate (FHR) data obtained from a non-stress test (NST) can be presented in a type of time series, which is accompanied by signal loss due to physical and biological causes. To recover or estimate FHR data, which is subjected to a high rate of signal loss, time series models [second-order autoregressive (AR(2)), first-order autoregressive conditional heteroscedasticity (ARCH(1)) and empirical mode decomposition and vector autoregressive (EMD-VAR)] and the residual bootstrap method were applied. The ARCH(1) model with the residual bootstrap technique was the most accurate [root mean square error (RMSE), 2.065] as it reflects the nonlinearity of the FHR data [mean absolute error (MAE) for approximate entropy (ApEn), 0.081]. As a result, the goal of predicting fetal health and identifying a high-risk pregnancy could be achieved. These trials may be effectively used to save the time and cost of repeating the NST when the fetal diagnosis is impossible owing to a large amount of signal loss.
- URI
- https://www.degruyter.com/view/j/bmte.2019.64.issue-2/bmt-2017-0203/bmt-2017-0203.xmlhttps://repository.hanyang.ac.kr/handle/20.500.11754/110716
- ISSN
- 0013-5585; 1862-278X
- DOI
- 10.1515/bmt-2017-0203
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > MATHEMATICS(수학과) > Articles
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