ArticlePediatric radiology2026
Reference values for shear wave elastography, shear wave dispersion and attenuation imaging in healthy paediatric livers.
Article in Pediatric radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe rising prevalence of paediatric liver disease, including metabolic dysfunction- associated steatotic liver disease, highlights the need for reliable, non-invasive diagnostic tools. Advanced ultrasound techniques such as shear wave elastography (SWE), shear wave dispersion (SWD), and attenuation imaging (ATI) offer promising alternatives to biopsy or magnetic resonance imaging, but normative paediatric values remain limited.
objectiveThis study aimed to establish age-specific reference values for SWE, SWD, and ATI in healthy children and to assess potential influencing factors such as age, sex, body mass index (BMI), and fasting duration. MATERIALS AND
methodsIn this retrospective study, 264 children (135 female, median age 11.5 years) without known liver disease were selected from a cohort of 734. Each child underwent liver ultrasound using a standardized protocol with five ATI and ten SWE/SWD measurements. Only high-quality data were included. Statistical analyses examined correlations between imaging parameters and patient characteristics.
resultsThe median ATI was 0.54 dB/cm/MHz [interquartile range (IQR):0.50-0.58], SWE was 1.24 m/s (IQR:1.14-1.33) and SWD was 11.70 (m/s)/kHz (IQR:10.84-12.13). ATI and SWD values showed significant negative correlations with age (P < 0.001 and P = 0.0048, respectively). SWD also correlated negatively with BMI z-score (P < 0.001) and was significantly lower in females (P = 0.001). SWE showed only a weak positive correlation with measurement depth (P = 0.0261). Fasting duration had no significant impact on any measurement.
conclusionThis study provides reference values for SWE, SWD, and ATI in children. Age and sex influence SWD and ATI values, underscoring the importance of age-specific interpretation in paediatric liver ultrasound.
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