Measurement of the transverse cerebellar diameter in preterm neonates and its use in assessment of gestational age

Davies, Mark W., Swaminathan, Mohan and Betheras, F. Rex (2001) Measurement of the transverse cerebellar diameter in preterm neonates and its use in assessment of gestational age. Australasian Radiology, 45 3: 309-312. doi:10.1046/j.1440-1673.2001.00926.x

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Author Davies, Mark W.
Swaminathan, Mohan
Betheras, F. Rex
Title Measurement of the transverse cerebellar diameter in preterm neonates and its use in assessment of gestational age
Journal name Australasian Radiology   Check publisher's open access policy
ISSN 0004-8461
1440-1673
Publication date 2001-08-01
Sub-type Article (original research)
DOI 10.1046/j.1440-1673.2001.00926.x
Open Access Status File (Author Post-print)
Volume 45
Issue 3
Start page 309
End page 312
Total pages 4
Place of publication Carlton, VIC, Australia
Publisher Blackwell Science Asia
Collection year 2001
Language eng
Subject 321019 Paediatrics
C1
321005 Fetal Development and Medicine
730204 Child health
Abstract This study aims to confirm the relationship between gestational age (GA) and transverse cerebellar diameter (TCD), to define the prediction of GA by TCD, and assess the reliability of TCD measurements. Infants were included in the study if they had a routine cranial ultrasound scan by day 3, and the TCD was measured. Infants were excluded from the study if the GA was not known, if there was any cranio-spinal malformation or grade 3 or 4 intraventricular haemorrhage (IVH). The GA assessment was an early pregnancy scan or certain dates. Cranial ultrasound scans were done with a LOGIQ 500 scanner (GE Medical Systems, Waukesha, WI, USA) with a 7 MHz curvilinear sector probe (GE LOGIQ-C721; GE Medical Systems). The posterior fossa was scanned using the asterion as the acoustic window with the TCD measured in the coronal plane. Intra- and interobserver reliability were assessed. A total of 221 infants of known GA had their TCD measured. The linear regression for GA versus TCD is: GA weeks = (0.470 x TCD millimetres) + 13.162 (r = 0.89, r2 = 0.79, P < 0.001). The 95% confidence interval predicts GA to plus or minus 2.33 weeks for a given TCD. Intra- and interobserver intraclass correlation coefficients are 0.98 and 0.99, respectively. Transverse cerebellar diameter correlates closely with GA and predicts GA to plus or minus 2.33 weeks. Measurements of TCD have excellent reproducibility.
Keyword Cerebellum
Gestational age
Preterm infant
Transverse cerebellar diameter
Ultrasonography
Q-Index Code C1
Q-Index Status Provisional Code
Additional Notes Journal name change from Australasian Radiology to Journal of Medical Imaging and Radiation Oncology in 2008.

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Thu, 06 Jan 2005, 10:00:00 EST