Abstract
Objectives
To develop and compare radiomics model and fusion model based on multiple MR parameters for staging liver fibrosis in patients with chronic liver disease.
Materials and methods
Patients with chronic liver disease who underwent multiparametric abdominal MRI were included in this retrospective study. Multiparametric MR images were imported into 3D-Slicer software for drawing bounding boxes on MR images. By using a 3D-Slicer extension of SlicerRadiomics, radiomics features were extracted from these MR images. The z-score normalization method was used for post-processing radiomics features. The least absolute shrinkage and selection operator method (LASSO) was performed for selecting significant radiomics features. The logistic regression analysis was used for building the radiomics model. A fusion model was built by integrating serum fibrosis biomarkers of aspartate transaminase-to-platelet ratio index (APRI) and the fibrosis-4 index (FIB-4) with radiomics signatures.
Results
In the training cohort, AUCs of radiomics and fusion model were 0.707–0.842 and 0.718–0.854 for differentiating different groups. In the testing cohort, AUCs were 0.514–0.724 and 0.609–0.728. For the training cohort, there was no significant difference of AUCs between radiomics and fusion model (p > 0.05). For the testing cohort, AUCs of fusion model were higher than those of radiomics model in differentiating F1-3 vs. F4 and F1-2 vs. F4 (p = 0.011 & 0.042).
Conclusions
Radiomics model and fusion model based on multiparametric MRI exhibited the feasibility for staging liver fibrosis in patients with CLD, and APRI and FIB-4 could improve the diagnostic performance of radiomics model in differentiating F1-3 vs. F4 and F1-2 vs. F4.
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Abbreviations
- ECM:
-
Extracellular matrix
- MRE:
-
Magnetic resonance elastography
- RFI:
-
Radiomics fibrosis index
- AUC:
-
Area under the curves
- PACS:
-
Picture archiving and communication system
- TACE:
-
Transcatheter arterial chemoebolization
- APRI:
-
Aspartate transaminase-to-platelet ratio index
- FIB-4:
-
Fibrosis-4 index
- ROI:
-
Region of interest
- GLCM:
-
Gray level cooccurrence matrix
- GLDM:
-
Gray level dependence matrix
- GLRLM:
-
Gray level run length matrix
- GLSZM:
-
Gray level size zone matrix
- NGTDM:
-
Neighbouring gray tone difference matrix
- ICC:
-
Intraclass correlation coefficient
- LASSO:
-
Least absolute shrinkage and selection operator method
- CI:
-
Confidence interval
- CLD:
-
Chronic liver disease
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**ao, L., Zhao, H., Liu, S. et al. Staging liver fibrosis: comparison of radiomics model and fusion model based on multiparametric MRI in patients with chronic liver disease. Abdom Radiol 49, 1165–1174 (2024). https://doi.org/10.1007/s00261-023-04142-2
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DOI: https://doi.org/10.1007/s00261-023-04142-2