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Abstract #2633

Assessing Liver Changes after 30% and 70% Partial Hepatectomy Using T1 and T2 mapping

Qing Li1, Shuangshuang Xie1, Caixin Qiu1, Jinxia Zhu2, Chengwen Liu2, and Wen Shen1
1Tianjin First Central Hospital, Tianjin, China, 2MR Collaboration, Siemens Healthcare, Ltd, Beijing, China

We enrolled nine and seven rats to undergo 30% and 70% partial hepatectomy (PH), respectively. All the rats underwent MRI examinations to obtain T1 and T2 mapping at baseline before surgery, and at 2h, day 1, day 2, day 3, day 5, day 7, day 14, and day 21 after surgery. We drew the trend charts of the T1 and T2 values and compared the T1 and T2 values in two groups across different time points. The trend charts of the T1 and T2 values were similar with some differences, indicating that liver regeneration in the 70% PH group was more active than that in the 30% PH group. The results suggested that T1 and T2 mapping are practical techniques to assess liver regeneration after PH.

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