Evidence map›Paper›PMID 29096427›Full record

ArticleUltrasonography (Seoul, Korea)2018

Accurate measurements of liver stiffness using shear wave elastography in children and young adults and the role of the stability index.

Eun Kyoung Hong, Young Hun Choi, Jung-Eun Cheon, Woo Sun Kim, In-One Kim, Sun Young Kang

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Article in Ultrasonography (Seoul, Korea), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

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16citing papers in PubMed
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16 citing papers in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Eun Kyoung HongDepartment of Radiology, Seoul National University Hospital, Seoul, Korea.
Young Hun ChoiDepartment of Radiology, Seoul National University Hospital, Seoul, Korea.
Jung-Eun CheonDepartment of Radiology, Seoul National University Hospital, Seoul, Korea.
Woo Sun KimDepartment of Radiology, Seoul National University Hospital, Seoul, Korea.
In-One KimDepartment of Radiology, Seoul National University Hospital, Seoul, Korea.
Sun Young KangDepartment of Clinical Ultrasound, DongSeo Medicare Co., Ltd., Seongnam, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to evaluate the usefulness of the stability index (SI) in liver stiffness measurements using shear wave elastography (SWE) in children.

methodsA total of 29 children and young adults (mean age, 16.1 years; range, 8 to 28 years; 11 boys and 18 girls) who underwent liver stiffness measurements using SWE under free-breathing and breath-holding conditions were included in our study. Ten SWE measurements were acquired in each of four groups: free-breathing and breath-holding, and with and without using the SI. The failure rate of acquisition of SI values over 90% was calculated in each group. To evaluate variability in the SWE measurements, the standard deviation, coefficient of variation, and percentage of unreliable measurements were compared. Intraobserver agreement and the optimal minimal number of measurements were calculated using intraclass correlation coefficients.

resultsA failure to acquire SI values over 90% was observed in 17% of the scans in the free-breathing group and in 7% of the scans in the breath-holding group. In both groups, utilizing the SI led to a significantly lower standard deviation and coefficient of variation. When using the SI, the percentage of unreliable measurements decreased from 16.7% to 8.3% in the free-breathing group and 14.8% to 0% in the breath-holding group. With the use of the SI, intraobserver agreement increased and the optimal minimal number of repeated measurements decreased in both the free-breathing and breath-holding groups.

conclusionUtilization of the SI in the measurement of liver SWE in children reduced measurement variability and increased reliability in both free-breathing and breath-holding conditions.

Indexed as

ChildrenElastographyLiverShear wave elastographyStability index

Identifiers

PMID29096427
PMCPMC6044215

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