Improving local PCA in pseudo phase space for fetal heart rate estimation from single lead abdominal ECG
-
Zheng Wei
and
Cheng Jianchun
Abstract
This paper proposes an improved local principal component analysis (LPCA) in pseudo phase space for fetal heart rate estimation from a single lead abdominal ECG signal. The improved LPCA process can extract both the maternal ECG component and the fetal ECG component in an abdominal signal. The instantaneous fetal heart rate can then be estimated from the extracted fetal ECG waveform. Compared with the classical LPCA procedure and another single lead based fetal heart rate estimation method, our improved LPCA method has shown better robustness and efficiency in fetal heart estimation, testing with synthetic ECG signals and a real fetal ECG database from PhysioBank. For the real fetal ECG validating dataset of six long-duration recordings (obtained between the 22nd and 40th week of gestation), the average accuracy of the improved LPCA method is 84.1%.
©2011 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Research Articles
- Electric impedance tomography for monitoring volume and size of the urinary bladder
- Improving local PCA in pseudo phase space for fetal heart rate estimation from single lead abdominal ECG
- Effect of malpositioned anterior cruciate ligament replacement on knee joint structures: a biomechanical model
- Pedicle-screw-based dynamic implants may increase posterior intervertebral disc bulging during flexion
- Influence of various types of damage on the fracture strength of ceramic femoral heads
- Psychophysiological classification and staging of mental states during meditative practice
- Can contextual online exams in practical biomedical education increase comprehension and motivation? A pilot project
