• 1. Department of Hepatobiliary Surgery, The First Affiliated Hospital of Army Medical University (Third Military Medical University), Chongqing 400038, P. R. China;
  • 2. Department of Radiology, The First Affiliated Hospital of Army Medical University (Third Military Medical University), Chongqing 400038, P. R. China;
  • 3. Department of Pathology, The First Affiliated Hospital of Army Medical University (Third Military Medical University), Chongqing 400038, P. R. China;
MA Kuansheng, Email: makuansheng@vip.sina.com
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Objective To establish a model for predicting microvascular invasion (MVI) of hepatocellular carcinoma based on magnetic resonance imaging (MRI) radiomics features.Methods The clinical and pathological datas of 190 patients with hepatocellular carcinoma who received surgical treatment in our hospital from September 2017 to May 2020 were prospectively collected. The patients were randomly divided into training group (n=158) and test group (n=32) with a ratio of 5∶1. Gadoxetate disodium (Gd-EOB-DTPA) -enhanced MR images of arterial phase and hepatobiliary phase were used to select radiomics features through the region of interest (ROI). The ROI included the tumor lesions and the area dilating to 2 cm from the margin of the tumor. Based on a machine learning algorithm logistic, a radiomics model for predicting MVI of hepatocellular carcinoma was established in the training group, and the model was evaluated in the test group.Results Seven radiomics features were obtained. The area under the receiver operating characteristic curve (AUC) of the training group and the test group were 0.830 [95%CI (0.669, 0.811)] and 0.734 [95%CI (0.600, 0.936)], respectively.Conclusion The model based on MRI radiomics features seems to be a promising approach for predicting the microvascular invasion of hepatocellular carcinoma, which is of clinical significance for the management of hepatocellular carcinoma treatment.

Citation: QU Chengming, LI Kun, CAI Ping, XIE Qiao, YAN Xiaochu, CHEN Shihan, LI Changfeng, XIA Feng, ZHANG Leida, FENG Kai, MA Kuansheng. A model based on MRI radiomics features for prediction of microvascular invasion in hepatocellular carcinoma. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2021, 28(2): 175-180. doi: 10.7507/1007-9424.202009112 Copy

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