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Age-related changes in liver, kidney, and spleen stiffness in healthy children measured with acoustic radiation force impulse imaging

Title
Age-related changes in liver, kidney, and spleen stiffness in healthy children measured with acoustic radiation force impulse imaging
Authors
Mi-Jung Lee;Myung-Joon Kim;Choon Sik Yoon;Kyung Hwa Han
Issue Date
2013
Journal Title
European Journal of Radiology
ISSN
0720-048X
Citation
European Journal of Radiology, Vol.82(6) : e290~e294, 2013
Abstract
OBJECTIVES: To evaluate the feasibility and age-related changes of shear wave velocity (SWV) in normal livers, kidneys, and spleens of children using acoustic radiation force impulse (ARFI) imaging. MATERIALS AND METHODS: Healthy pediatric volunteers prospectively underwent abdominal ultrasonography and ARFI. The subjects were divided into three groups according to age: group 1: <5 years old; group 2: 5-10 years old; and group 3: >10 years old. The SWV was measured using a 4-9 MHz linear probe for group 1 and a 1-4 MHz convex probe for groups 2 and 3. Three valid SWV measurements were acquired for each organ. RESULTS: Two hundred and two children (92 male, 110 female) with an average age of 8.1 years (± 4.7) were included in this study and had a successful measurement rate of 97% (196/202). The mean SWVs were 1.12 m/s for the liver, 2.19 m/s for the right kidney, 2.33 m/s for the left kidney, and 2.25 m/s for the spleen. The SWVs for the right and left kidneys, and the spleen showed age-related changes in all children (p<0.001). And the SWVs for the kidneys increased with age in group 1, and those for the liver changed with age in group 3. CONCLUSIONS: ARFI measurements are feasible for solid abdominal organs in children using high or low frequency probes. The mean ARFI SWV for the kidneys increased according to age in children less than 5 years of age and in the liver, it changed with age in children over 10.
URI
http://www.sciencedirect.com/science/article/pii/S0720048X13000521

http://ir.ymlib.yonsei.ac.kr/handle/22282913/88032
DOI
10.1016/j.ejrad.2013.01.018
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
1. 연구논문 > 1. College of Medicine > Yonsei Biomedical Research Center
Yonsei Authors
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