Prediction of liver remnant regeneration after living donor liver transplantation using preoperative CT texture analysis
- Authors
- Kim, Ji-Eun; Kim, Jung Hoon; Park, Sang Joon; Choi, Seo-Youn; Yi, Nam-Joon; Han, Joon Koo
- Issue Date
- May-2019
- Publisher
- Springer New York
- Keywords
- Liver; Liver transplantation; Tissue Donor; Regeneration; Tomography
- Citation
- Abdominal Radiology, v.44, no.5, pp 1785 - 1794
- Pages
- 10
- Journal Title
- Abdominal Radiology
- Volume
- 44
- Number
- 5
- Start Page
- 1785
- End Page
- 1794
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/4561
- DOI
- 10.1007/s00261-018-01892-2
- ISSN
- 2366-004X
2366-0058
- Abstract
- PurposeTo predict the rate of liver regeneration after living donor liver transplantation (LDLT) using pre-operative computed tomography (CT) texture analysis.Materials and methods112 living donors who performed right hepatectomy for LDLT were included retrospectively. We measured the volume of future remnant liver (FLR) on pre-operative CT and the volume of remnant liver (LR) on follow-up CT, taken at a median of 123days after transplantation. The regeneration index (RI) was calculated using the following equation: [(VLR-VFLR)/VFLR]<100. Computerized texture analysis of the semi-automatically segmented FLR was performed. We used a stepwise, multivariable linear regression to assess associations of clinical features and texture parameters in relation to RI and to make the best-fit predictive model.ResultsThe mean RI was 110.737.8%, highly variable ranging from 22.4% to 247.0%. Among texture parameters, volume of FLR, standard deviation, variance, and gray level co-occurrence matrices (GLCM) contrast were found to have significant correlations between RI. In multivariable analysis, smaller volume of FLR (beta -0.17, 95% CI -0.22 to -0.13) and lower GLCM contrast (beta -1.87, 95% CI -3.64 to -0.10) were associated with higher RI. The regression equation predicting RI was following: RI=203.82+10.42xpre-operative serum total bilirubin (mg/dL) -0.17xV(FLR) (cm(3))-1.87xGLCM contrast (x100).Conclusion Volume of FLR and GLCM contrast were independent predictors of RI, showing significant negative correlations. Pre-operative CT with texture analysis can be useful for predicting the rate of liver regeneration in living donor of liver transplantation.
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Collections - College of Medicine > Department of Radiology > 1. Journal Articles
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