ISSN: 1899-0967
Polish Journal of Radiology
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vol. 89
Musculoskeletal radiology
Original paper

Influence of the physical pressure of an ultrasound probe on shear-wave elastography measurements of the gastrocnemius muscle in a paediatric population: a non-interventional cohort study

Agnieszka Cebula
Maciej Cebula
Marta Czajkowska
Katarzyna Gruszczyńska
Ilona Kopyta

Department of Paediatric Neurology, Faculty of Medical Sciences, Medical University of Silesia in Katowice, Poland
Individual Specialist Medical Practice Maciej Cebula, Katowice, Poland
Doctoral School, Medical University of Silesia in Katowice, Poland
Department of Radiology and Nuclear Medicine, Faculty of Medicine, Medical University of Silesia in Katowice, Poland
© Pol J Radiol 2024; 89: e24-e29
Online publish date: 2024/01/16
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The aim of our study is to evaluate the impact of ultrasound probe mechanical pressure on the stiffness of the gastrocnemius muscle in a healthy paediatric population. As far as we know, there has been no previous qualitative in vivo study on the impact of probe pressure on muscle shear-wave elastography results with objective evaluation of compression in the paediatric population.

Material and methods:
In this cohort study, a group of 22 children (mean age 8.99 years, SD 2.74, 11 males) underwent elastography of the gastrocnemius muscle of the dominant leg. A custom-made, 3-dimensional printed probe cover was used to measure the mechanical pressure of the probe on tissues.

The obtained results were related to the age, sex, BMI, and calf circumference of the subjects. We observed a significant difference in the stiffness parameter at a pressure of 1 N, with a further increase if force was increased (p < 0.001). A significant, very weak positive correlation of age and stiffness was observed (p < 0.001, r2 = 0.022). There was no significant correlation of stiffness, BMI, and calf circumference.

The use of compression during muscle elastography in children causes a significant bias in results, regardless of age, sex, BMI, or calf size.


paediatrics, elastography, muscles, shear wave elastography, ultrasound

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