Comparison of point and 2-dimensional shear wave elastography for the evaluation of liver fibrosis

This study aimed to assess the technical performance of ElastQ Imaging compared with ElastPQ and to investigate the correlation between liver stiffness (LS) values obtained using these two techniques. This retrospective study included 249 patients who underwent LS measurements using both ElastPQ and...

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Bibliographic Details
Published in:Ultrasonography (Seoul, Korea) 2020, 39(3), , pp.288-297
Main Authors: Lee, Sang Min, Kim, Min-Jeong, Yoon, Jeong Hee, Hong, Wonju, Ha, Hong Il, Lee, Kwanseop, Choe, Ji-Young, Lee, Jung Woo, Yoon, Sam-Youl, Han, Junhee
Format: Article
Language:English
Subjects:
arfi imaging
Biopsy
elastography
Liver
liver fibrosis
Medical records
Original
Patients
Success
ultrasonography
방사선과학
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Summary:This study aimed to assess the technical performance of ElastQ Imaging compared with ElastPQ and to investigate the correlation between liver stiffness (LS) values obtained using these two techniques. This retrospective study included 249 patients who underwent LS measurements using both ElastPQ and ElastQ Imaging equipped on the same machine. The applicability, repeatability (coefficient of variation [CV]), acquisition time, and LS values were compared using the chi-square or Wilcoxon signed-rank tests. In the development group, the correlation between the LS values obtained by the two techniques was assessed with Spearman correlation coefficients and linear regression analysis. In the validation group, the agreement between the estimated and real LS values was evaluated using a Bland-Altman plot. ElastQ Imaging had higher applicability (94.0% vs. 78.3%, P
ISSN:2288-5919
2288-5943
DOI:10.14366/usg.19090