Automatic Contraction Detection Using Uterine Electromyography
Abstract
:1. Introduction
2. Materials and Methods
2.1. Data
2.2. Data Contraction Detection Methods
2.2.1. Wavelet Energy
2.2.2. Teager Energy Operator
2.2.3. Root Mean Square
2.2.4. Squared RMS
2.2.5. Hilbert Envelope
2.3. Contraction Detection Algorithm
2.4. Visualization and Scoring Methodology
3. Results
4. Discussion
Author Contributions
Funding
Conflicts of Interest
References
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Detection Method in the Respective EHG Channel | |
---|---|
Wavelet_cont | Number of contractions detected with wavelet energy method |
Teager_cont | Number of contractions detected with Teager method |
RMS_cont | Number of contractions detected with RMS method |
RMS_Squared_cont | Number of contractions detected with squared RMS method |
Hilbert_Envelope_cont | Number of contractions detected with Hilbert envelope method |
Classification (%) | Definition | |
---|---|---|
Contraction Accuracy | 0 | Contraction was detected |
50 | Contraction was partially detected | |
100 | Contraction was not detected | |
Delineation Accuracy | 100 | Contraction delineation is correct |
50 | Contraction delineation is partially correct |
Detection Method | Contraction Accuracy (%) | Delineation Accuracy (%) | False Negative Rate (%) |
---|---|---|---|
Wavelet Energy | 92.28 ± 6.66 | 79.19 ± 13.60 | 1.93 |
Teager Energy | 65.57 ± 25.05 | 71.12 ± 10.61 | 4.74 |
RMS | 93.64 ± 12.08 | 83.99 ± 12.67 | 1.51 |
Squared RMS | 97.15 ± 4.66 | 89.43 ± 8.10 | 0.63 |
Hilbert Envelope | 73.00 ± 19.85 | 71.99 ± 13.59 | 4.41 |
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Esgalhado, F.; Batista, A.G.; Mouriño, H.; Russo, S.; dos Reis, C.R.P.; Serrano, F.; Vassilenko, V.; Duarte Ortigueira, M. Automatic Contraction Detection Using Uterine Electromyography. Appl. Sci. 2020, 10, 7014. https://doi.org/10.3390/app10207014
Esgalhado F, Batista AG, Mouriño H, Russo S, dos Reis CRP, Serrano F, Vassilenko V, Duarte Ortigueira M. Automatic Contraction Detection Using Uterine Electromyography. Applied Sciences. 2020; 10(20):7014. https://doi.org/10.3390/app10207014
Chicago/Turabian StyleEsgalhado, Filipa, Arnaldo G. Batista, Helena Mouriño, Sara Russo, Catarina R. Palma dos Reis, Fátima Serrano, Valentina Vassilenko, and Manuel Duarte Ortigueira. 2020. "Automatic Contraction Detection Using Uterine Electromyography" Applied Sciences 10, no. 20: 7014. https://doi.org/10.3390/app10207014