Assessing fetal health

Gribbin, Clare; James, David

doi:10.1016/j.bpobgyn.2004.02.004

Cited by 12 publications

(4 citation statements)

References 35 publications

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“…Over the last 50 years, there have been considerable advances in the technology and more than 50 different formulae have been devised to measure fetal growth. Disappointingly, there is no evidence that current methods of ultrasound assessment of fetal growth make any difference to outcome in both low-risk and high-risk pregnancies (Gribben and James 2004).…”

Section: Resultsmentioning

confidence: 99%

What is the value of ultrasound soft tissue measurements in the prediction of abnormal fetal growth?

Farah

Stuart

Donnelly

et al. 2009

Journal of Obstetrics and Gynaecology

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Abnormal fetal growth increases the complications of pregnancy not only for the baby but also for the mother. Growth abnormalities also have lifelong consequences. These babies are at increased risk of insulin resistance, diabetes and hypertension later in life. It is important to identify these babies antenatally to optimise their clinical care. Although used extensively antenatally to monitor fetal growth, ultrasound has its limitations. Despite the use of more than 50 different formulae to estimate fetal weight, their performance has been poor at the extremes of fetal weight. Over the past 20 years there has been emerging interest in studying fetal soft tissue measurements to improve detection of growth abnormalities. This review paper outlines the value of soft tissue measurements in identifying fetal growth abnormalities, in estimating fetal weight and in managing diabetes mellitus in pregnancy.

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Section: Resultsmentioning

confidence: 99%

What is the value of ultrasound soft tissue measurements in the prediction of abnormal fetal growth?

Farah

Stuart

Donnelly

et al. 2009

Journal of Obstetrics and Gynaecology

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“…Fetal brain damage can manifest on US as fetal hypoxia with US criteria consisting of intrauterine growth retardation (IUGR), abnormal Doppler (especially umbilical), abnormal score on biophysical profile, which depends upon fetal heart rate, amniotic fluid volume, fetal breathing movements, gross body movements, and fetal tone [11]. Factors leading to pregnancies at risk for fetal brain damage are numerous and include maternal, obstetrical (mechanic), and fetal factors.…”

Section: Risk Factors For Fetal Brain Injurymentioning

confidence: 99%

Acquired fetal brain lesions

Girard¹,

Dediu²,

Dory‐Lautrec

2015

J Pediatr Neuroradiol

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During the last decade, increasing interest in magnetic resonance imaging (MRI) has emerged for the evaluation of fetal abnormalities detected on ultrasound. The advent of single-shot rapid acquisition sequences has greatly facilitated the ability to obtain detailed imaging information of the fetal brain. To date, fetal MRI has shown to have an important role in the investigation of cerebral abnormalities suspected by sonography, and in the detection of subtle brain anomalies associated with high-risk pregnancies. MRI has proved to be a useful adjunct to sonography during the prenatal period of development, especially for the detection of acquired disorders. Acquired fetal brain disorders include fetal hypoxia, congenital infections (especially toxoplasmosis and cytomegalovirus infections), brain injury due to malformations, pregnancies at risk of fetal brain damage, inherited metabolic diseases, especially mitochondrial diseases, intrauterine growth retardation, and tumors. Acquired fetal brain disorders represent the third most frequent indication for fetal brain MRI following fetal ventricular dilatation and central nervous system malformations.

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“…Today, it is generally accepted that current methods for biophysical antenatal surveillance do not facilitate a comprehensive and reliable assessment of foetal well-being (Gribbin and James 2004, Guimaraes-Filho et al 2008, Lewis 2003. Alternatively, there is continuing development of existing technologies and research into new non-invasive methods that aim to improve antenatal monitoring procedures (Comani et al 2005, Kovacs et al 2000, Pieri et al 2001, Rolfe et al 2006, Várady et al 2003.…”

Section: Introductionmentioning

confidence: 99%

On the interpretation of the independent components underlying the abdominal phonogram: a study of their physiological relevance

Jiménez-González

James

2012

Physiol. Meas.

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Recorded by positioning a sensitive acoustic sensor over the maternal womb, the abdominal phonogram is a signal that contains valuable information for foetal surveillance (e.g. heart rate), which is hidden by maternal and environmental sources. To recover such information, previous work used single-channel independent component analysis (SCICA) to separate the abdominal phonogram into statistically independent components (ICs) that, once acquired, must be objectively associated with the real sources underlying the abdominal phonogram-either physiological or environmental. This is a typical challenge for blind source separation methodologies and requires further research on the signals of interest to find a suitable solution. Here, we have conducted a joint study on 75 sets of ICs by means of statistical, spectral, complexity and time-structure analysis methods. As a result, valuable and consistent characteristics of the components separated from the abdominal phonogram by SCICA have been revealed: (1) the ICs are spectrally disjoint and sorted according to their frequency content, (2) only the ICs with lower frequency content present strong regular patterns and (3) such regular patterns are driven by well-known physiological processes given by the maternal breathing rate, the maternal heart rate and the foetal heart rate. This information was so promising that it has been used in current work for automatic classification of ICs and recovery of the traces of the physiological sources underlying the abdominal phonogram. Future work will look for the extraction of information useful for surveillance (e.g. heart rate), not only about foetal well-being, but also about maternal condition.

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Assessing fetal health

Cited by 12 publications

References 35 publications

What is the value of ultrasound soft tissue measurements in the prediction of abnormal fetal growth?

What is the value of ultrasound soft tissue measurements in the prediction of abnormal fetal growth?

Acquired fetal brain lesions

On the interpretation of the independent components underlying the abdominal phonogram: a study of their physiological relevance

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