European journal of radiology · 2025
Application of combi-elastography for follow-up after pediatric liver transplantation: A prospective study.
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Gao Yang, Xu Fenglin, Zhu Lirong, Tang Yi, Yang Chunjiang, Xu Juan, Wang Zhi-Gang, Chen Jingyu
Аннотация
OBJECTIVE: To investigate the use of combi-elastography in children after liver transplantation.
METHODS: Thirty-five children who underwent liver transplantation at our hospital were prospectively selected. Donor livers were divided into fatty liver and nonfatty liver groups according to the degree of fatty liver. Recipients were categorized into groups with (10 patients) and without complications (25 patients) according to the presence or absence of complications within 6 months after surgery. Combi-elastography was performed on each donor liver, and each patient underwent combi-elastography at the time of surgery and at 1 day, 7 days, 1 month, 3 months, and 6 months after surgery; the results of liver function tests were recorded at the same time points.
RESULTS: Despite the rapid recovery of liver function in the group without complications, the combi-elastography indices were still high in the early stage and gradually stabilized after 3 months but were still higher than those of the donor liver at 6 months. In the fatty liver group, the postoperative 1-day combi-elastography values were significantly higher than those in the nonfatty liver group, and in the group with complications, the postoperative 1-day combi-elastography values were significantly higher than those in the group without complications. The receiver operating characteristic (ROC) curve analysis revealed that the areas under the curves (AUCs) of the combi-elastography values for predicting complications in children at 6 months after liver transplantation were 8.41 kPa for Young's modulus (E) (with a sensitivity of 90 % (9/10 and a specificity of 76 % (19/25)) 1.26 for the F-index (FI) value (sensitivity 80 %(8/10), specificity 80 % (20/25)), and 1.05 kPa for the A-index (AI) value (sensitivity 80 %(8/10), specificity 72 % (18/25)).
CONCLUSIONS: Combi-elastography is useful for assessing changes in liver stiffness in the early period after liver transplantation and should therefore be considered for the follow-up of children who undergo liver transplantation.
METHODS: Thirty-five children who underwent liver transplantation at our hospital were prospectively selected. Donor livers were divided into fatty liver and nonfatty liver groups according to the degree of fatty liver. Recipients were categorized into groups with (10 patients) and without complications (25 patients) according to the presence or absence of complications within 6 months after surgery. Combi-elastography was performed on each donor liver, and each patient underwent combi-elastography at the time of surgery and at 1 day, 7 days, 1 month, 3 months, and 6 months after surgery; the results of liver function tests were recorded at the same time points.
RESULTS: Despite the rapid recovery of liver function in the group without complications, the combi-elastography indices were still high in the early stage and gradually stabilized after 3 months but were still higher than those of the donor liver at 6 months. In the fatty liver group, the postoperative 1-day combi-elastography values were significantly higher than those in the nonfatty liver group, and in the group with complications, the postoperative 1-day combi-elastography values were significantly higher than those in the group without complications. The receiver operating characteristic (ROC) curve analysis revealed that the areas under the curves (AUCs) of the combi-elastography values for predicting complications in children at 6 months after liver transplantation were 8.41 kPa for Young's modulus (E) (with a sensitivity of 90 % (9/10 and a specificity of 76 % (19/25)) 1.26 for the F-index (FI) value (sensitivity 80 %(8/10), specificity 80 % (20/25)), and 1.05 kPa for the A-index (AI) value (sensitivity 80 %(8/10), specificity 72 % (18/25)).
CONCLUSIONS: Combi-elastography is useful for assessing changes in liver stiffness in the early period after liver transplantation and should therefore be considered for the follow-up of children who undergo liver transplantation.