MR elastography of the liver: comparison of three measurement methods
- Authors
- Kim, Mimi; Kang, Bo Kyeong; Jun, Dae Won; Kim, Yong Soo
- Issue Date
- Sep-2020
- Publisher
- W B SAUNDERS CO LTD
- Citation
- CLINICAL RADIOLOGY, v.75, no.9, pp.715.e1 - 715.e7
- Indexed
- SCIE
SCOPUS
- Journal Title
- CLINICAL RADIOLOGY
- Volume
- 75
- Number
- 9
- Start Page
- 715.e1
- End Page
- 715.e7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/8985
- DOI
- 10.1016/j.crad.2020.05.015
- ISSN
- 0009-9260
- Abstract
- AIM: To analyse the inter- and intra-observer agreement of liver stiffness value (LSV) using three methods with 3 T magnetic resonance elastography (MRE) and to investigate factors related to LSV difference.
MATERIALS AND METHODS: This retrospective study included 147 patients. Two independent observers measured the LSV using three region of interest (ROI) methods: (1) circular ROI with a radius of 1 cm in the right lobe, (2) largest ROI possible, and (3) average value considering the measurement area. The agreement and factors related to difference of LSV were investigated.
RESULTS: The intraclass correlation coefficients were excellent at 0.982-0.997 in all methods. The differences between observers for method 1 were significantly larger than those of method 2 or method 3 (p<0.001). The ChildePugh classification was only related to LSV difference (p<0.001).
CONCLUSION: Methods 2 and 3 were significantly more reliable than method 1. The Child-Pugh classification was only related to difference of LSV.
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