Abstract
Liver size and midclavicular line were measured by clinical and sonographic methods in 145 normal Chinese neonates with gestational ages of 34-42 weeks. The liver span, measured by clinical methods with percussion and percussion/palpation methods, correlated well with that measured by sonography (r = 0.73 and r = 0.76, respectively) for the entire sample. The liver spans (mean +/- SD) obtained by sonography were 4.24 +/- 0.63 cm and 4.58 +/- 0.56 cm in the preterm and term neonates, respectively. The liver span (sonography) and the distance of the liver edge below the right costal margin were weakly related in the term neonates (r = 0.36), but unrelated in the preterm neonates. We conclude that the liver span is a better estimate of liver size than the distance below the right coastal margin in normal neonates. We also found that the mean liver span is approximately 1 cm smaller in Chinese neonates than in Western neonates.
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