Cerebral measurements made using cranial ultrasound in term Ugandan newborns


Hagmann, CF; Robertson, NJ; Acolet, D; Nyombi, N; Ondo, S; Nakakeeto, M; Cowan, FM; (2011) Cerebral measurements made using cranial ultrasound in term Ugandan newborns. Early human development, 87 (5). pp. 341-347. ISSN 0378-3782 DOI: https://doi.org/10.1016/j.earlhumdev.2011.01.044

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Abstract

Background: Few cUS studies of cerebral measurements are available for normal term infants. Normative data is important for evaluating cerebral structure size in symptomatic term infants and assessing preterm brain growth by term age. Objectives: To (i) make linear measurements using cranial ultrasound (cUS) for major cerebral structures and intracranial spaces in normal newborn term infants, (ii) correlate these measurements with gestational age (GA), birth weight (BW), head circumference (HC), gender and within one infant (iii) examine inter/intra-observer variation, and (iv) compare these data with those currently available. Design, setting and patients: Linear cUS measurements of major cerebral structures were made in well termborn Ugandan infants at Mulago University Hospital, Kampala. Correlations between the measurements and gender, HC. BW and GA were calculated. Intra- and inter-observer agreements were assessed. Results: Data from 106 infants (mean GA 39.20 +/- 1.4SD weeks) were analysed. Intra/inter-observer agreement was substantial/excellent. Significant correlations were found between HC and pons anterior-posterior diameter (p<0.01), corpus callosal (CC) length (p=0.02) and transverse cerebellar diameter (TCD, p<0.01) and between BW and CC length (p=0.02), vermis height (<0.01) and thalamo-occipital distance (p=0.03); no significant correlation was found with GA. Within infants CC length and TCD correlated significantly (p=0.019). Males had larger left ventricular indices than females (p=0.04). The data was similar to those from other populations. Conclusions: These data provide reliable reference values for linear measurements of many cerebral structures made using cUS. The data agree well with those from other populations suggesting that cerebral size is similar in different ethnic groups. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

Item Type: Article
Keywords: Cerebral measurements, Term neonate, Cranial ultrasound, Normal, African, CAVUM-SEPTI-PELLUCIDI, NORMAL FETAL DEVELOPMENT, LOW-RESOURCE SETTINGS, SUBARACHNOID SPACE, CORPUS-CALLOSUM, LATERAL VENTRICLES, CEREBELLAR, VERMIS, GESTATIONAL-AGE, PRETERM INFANTS, HIGH-RESOLUTION
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Medical Statistics
PubMed ID: 21353402
Web of Science ID: 290831400004
URI: http://researchonline.lshtm.ac.uk/id/eprint/675

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