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Weight-specific normal liver stiffness values in children
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Weight-specific normal liver stiffness values in children
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Weight-specific normal liver stiffness values in children
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Journal Article
Weight-specific normal liver stiffness values in children
2024
Overview
BackgroundTwo-dimensional (2-D) shear wave elastography is a commonly used sonographic elastography method for the noninvasive measurement of liver stiffness. There is little liver stiffness data available in the pediatric population and its association with the child’s weight is scarce.ObjectiveThe principal aim of our study was to determine weight-specific reference liver stiffness values in a pediatric population free of liver disease.Materials and methodsIn this retrospective single-center study, 2-D shear wave elastography values were recorded in children with no history of liver disease and with a clinically indicated ultrasound examination, between April 2021 and July 2022. Examinations were performed using an Aplio i800 and two Aplio a450 (Canon Medical Systems), with a convex probe (i8CX1 or 8C1 transducers). This population was divided into ten weight groups. We evaluated the relation between weight and liver elasticity values and compared right and left lobe measurements.ResultsDuring the period of the study, 235 children were included. We then excluded 64 patients (weight not available = 13, interquartile range to median ratio (IQR/M) greater than 30% = 51). On the final sample (171 patients, median age 6.5 years [0–18], median weight 22.6 kg [2.5–80]), stiffness values showed a global significant trend to increase with weight. In each group, there was no significant difference between right and left liver stiffness values. The mean normal liver stiffness value including all children was 5.3 ± 1.1 kPa.ConclusionLiver stiffness in our pediatric sample with no history of liver disease increases with weight. These data may help to distinguish normal from pathological elastography values.
