Adaptive Multiscale Complexity Analysis of Fetal Heart Rate

H. Helgason, P. Abry, P. Goncalves, C. Gharib, P. Gaucherand, M. Doret
2011 IEEE Transactions on Biomedical Engineering  
Per partum fetal asphyxia is a major cause of neonatal morbidity and mortality. Fetal heart rate monitoring plays an important role in early detection of acidosis, an indicator for asphyxia. This problem is addressed in this paper by introducing a novel complexity analysis of fetal heart rate data, based on producing a collection of piecewise linear approximations of varying dimensions from which a measure of complexity is extracted. This procedure specifically accounts for the highly
more » ... ary context of labor by being adaptive and multiscale. Using a reference dataset, made of real per partum fetal heart rate data, collected in situ and carefully constituted by obstetricians, the behavior of the proposed approach is analyzed and illustrated. Its performance is evaluated in terms of the rate of correct acidosis detection versus the rate of false detection, as well as how early the detection is made. Computational cost is also discussed. The results are shown to be extremely promising and further potential uses of the tool are discussed. MATLAB routines implementing the procedure will be made available at the time of publication. Index Terms-Fetal heart rate (FHR) monitoring, multiscale approximations, network flow algorithms, per partum acidosis detection, time series complexity.
doi:10.1109/tbme.2011.2121906 pmid:21382764 fatcat:eimtlwvwojcp7hhzayyk2egd7e