Abstract #0538

Peritumoral Dilation Radiomics of Gd-EOB-DTPA MRI Predicts Early Relapse in Hepatocellular Carcinoma Without Macrovascular Invasion

Huan-Huan Chong^1,2, Yu-Da Gong³, Lei Chen⁴, Xian-Pan Pan⁴, Ai-E Liu⁴, Chun Yang², and Meng-Su Zeng^1,2,5

¹Shanghai Institute of Medical Imaging, Shanghai, China, ²Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China, ³Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China, ⁴Shanghai United Imaging Intelligence Co., Ltd., Shanghai, China, ⁵Department of Medical Imaging, Shanghai Medical College, Fudan University, Shanghai, China

Preoperatively identifying predisposing predictors of early relapse is crucial for stratifying patient risk, performing prompt intervention and improving long-term outcome. Whether peritumoral dilation radiomics can predict early recurrence in hepatocellular carcinoma(HCC) patients without macrovascular invasion remains unclear. Hence, we developed a bi-regional (the entire tumor and peritumoral zone within 1 cm) radiomics of gadoxetate disodium-enhanced (Gd-EOB-DTPA) MRI, which derived a satisfying discrimination in 2-year recurrence by the 5-fold cross-validation method.

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