Cite this article as: ZHANG H, ZOU L Q, ZHONG W X, et al. Quantitative evaluation of liver fibrosis by MRE and Gd-EOB-DTPA-enhanced T1 mapping magnetic resonance imaging in a rabbit model[J]. Chin J Magn Reson Imaging, 2024, 15(8): 172-178. DOI:10.12015/issn.1674-8034.2024.08.026.
[Abstract] Objective To compare the accuracy of MR elastography (MRE) and Gd-EOB-DTPA-enhanced T1 mapping in the quantitative evaluation of liver fibrosis (LF) staging.Materials and Methods One hundred and twenty rabbits were randomly divided into control group (n=20), which were injected subcutaneously with normal saline solution, and LF group (n=100), which were received 50% (carbon tetrachloride) CCl4 oil solution. The control group (n=5) and LF group (n=25) underwent MRI axial scan, T1WI, MRE, Gd-EOB-DTPA-enhanced T1 mapping at the end of the 4th, 5th, 6th, 15th week. The pathological LF staging was based on Scheuer staging system. The quantitative parameter included liver stiffness (LS), pre- and post-contrast T1 values of the liver (T1native and T120min), the reduction rate of T1 relaxation time (ΔT120min) and the increase in T1 relaxation rate (ΔR120min), were compared the differences by one-way ANOVA analysis. Spearman correlation coefficients, Receiver operating characteristic (ROC) analysis was used respectively to determine the correlation and diagnostic performance between quantitative parameters and pathological LF staging.Results A total of 96 rabbits were included in F0 (n=15), F1 (n=22), F2 (n=22), F3 (n=18) and F4 (n=19). LS, T1native, T120min, ΔT120min, ΔR120min showed significant differences among all LF staging (P<0.05). There were correlation between LS, T1native, T120min, ΔT120min, ΔR120min and LF stage (r=0.935, 0.559, 0.770, -0.418 -0.686, P<0.001), respectively. LS exhibited the largest area under the curve (AUC), which were 0.988, 0.979, 1.000, 0.995 for F0 vs. F1~F4, F0 vs. F1~F2, F0 vs. F3~F4, F1~F2 vs. F3~F4, respectively. Secondly, the AUC of T120min were 0.914, 0.852, 0.987, and 0.896, respectively.Conclusions In the early quantitative evaluation of LF staging, MRE and Gd-EOB-DTPA enhanced T1 mapping had demonstrated significant diagnostic value, with MRE outperforming Gd-EOB-DTPA enhanced T1 mapping. |
[Keywords] liver fibrosis;magnetic resonance elastography;liver stiffness;Gd-EOB-DTPA;T1 mapping |
1 Department of Radiology, Shenzhen Nanshan People's Hospital, Shenzhen 518052, China
2 Department of Radiology, Shenzhen Baoan Women's and Children's Hospital, Shenzhen, 518100, China
Corresponding author: SHI Q, E-mail: docshi@126.com
Conflicts of interest None.
Received 2024-03-07 |
Accepted 2024-07-30 |
DOI: 10.12015/issn.1674-8034.2024.08.026 |
Cite this article as: ZHANG H, ZOU L Q, ZHONG W X, et al. Quantitative evaluation of liver fibrosis by MRE and Gd-EOB-DTPA-enhanced T1 mapping magnetic resonance imaging in a rabbit model[J]. Chin J Magn Reson Imaging, 2024, 15(8): 172-178. DOI:10.12015/issn.1674-8034.2024.08.026. |