Development of Algorithm for Estimation of Gestational Age using each Variable of Fetal Heart Rate / 대한산부인과학회잡지
Korean Journal of Obstetrics and Gynecology
; : 2016-2024, 2001.
Artículo
en Coreano
| WPRIM (Pacífico Occidental)
| ID: wpr-137840
Biblioteca responsable:
WPRO
ABSTRACT
OBJECTIVE:
The objective of this study is to estimate gestational age by using FHR parameters after linear and nonlinear analysis of FHR data. Linear spectral decomposition has a limit to describe and analyze the nonlinear and complex physiological nature. Random processing and chaotic analysis assist to quantify some patterned energies, interaction of the physiological system in body system, which the constancy is preserved, and complexity of physical cardiovascular system. But there are no great development of new device which notify fetal age.METHODS:
From March 1995 to December 2000, 2,548 cases who received NST during antenatal visit were included in this study. Among these cases, 1000 cases were sampled randomly. We divided this cases into a study and a control group, 500 cases for model building set and the other 500 cases for validation set. Each FHR parameters such as baseline FHR, variability (AMP, MMR), acceleration & deceleration (15 bpm-15 seconds), loss of signal, the number of fetal movement were analysed by using our own computerized HYFM-I, II software system. The linear and non-linear analysis of FHR were done after extracting approximate entropy (ApEn) value. Finally, we performed regression analysis and extract an equation for estimation of gestational weeks using bootstrap method.RESULTS:
We extract a following equation using above studymethod:
Log(GA)=5.870-0.051(Sloss*)-0.065(Mean FHR*)+0.049(Mean FHR*)2-0.058(FM*)+0.048(AMP*)2+0.121(A1515*)-0.031(A1515*)2+0.036(ApEn*)2.CONCLUSIONS:
Accurate dating of pregnancy, namely gestational week is very important for antenatal diagnosis in the field of perinatal medicine. This study will propose scientific research results which are useful for studying normal and morbid generating physiological fetal condition. We extract an appropriate equation for estimation of gestational weeks only using FHR parameters. We hope to compare our result with other authors' results in the near future.
Texto completo:
Disponible
Base de datos:
WPRIM (Pacífico Occidental)
Asunto principal:
Diagnóstico Prenatal
/
Frecuencia Cardíaca Fetal
/
Sistema Cardiovascular
/
Edad Gestacional
/
Entropía
/
Desaceleración
/
Corazón Fetal
/
Movimiento Fetal
/
Esperanza
/
Aceleración
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
Límite:
Embarazo
Idioma:
Coreano
Revista:
Korean Journal of Obstetrics and Gynecology
Año:
2001
Tipo del documento:
Artículo