Identification of Arterial Hyperenhancement in CT and MRI in Patients with Hepatocellular Carcinoma: Value of Unenhanced Images

作者：Mimi Kim, Tae Wook Kang, Dong Ik, Kyoung Mi Jang, Young Kon Kim, Seong Hyun Kim, Dong Hyun Sinn, Kyunga Kim · 发表于：Korean Journal of Radiology · 年份：2019 · DOI：10.3348/kjr.2018.0339 · 被引用次数：17 · 研究领域：Hepatocellular Carcinoma Treatment and Prognosis、MRI in cancer diagnosis、Organ Transplantation Techniques and Outcomes

OBJECTIVE: According to the current guidelines, arterial hyperenhancement for diagnosis of hepatocellular carcinoma (HCC) is determined using the arterial phase only. We investigated the optimal definition of arterial hyperenhancement in patients with HCC using computed tomography (CT) and magnetic resonance imaging (MRI). MATERIALS AND METHODS: The Institutional Review Board approved this retrospective study. The requirement for informed consent was waived. Between January 2011 and September 2013, 147 consecutive patients with surgically proven HCCs with both pre-operative CT and MRI were included. Identification rates of arterial hyperenhancement on CT and magnetic resonance (MR) images using arterial phase only, dual phase (unenhanced and arterial phases), and also subtraction MR images were assessed qualitatively. RESULTS: = 0.257). The identification rate of arterial hyperenhancement in MRI increased to 98.6% using subtraction MR images. CONCLUSION: Visual comparison of arterial and unenhanced phases could be recommended instead of conventional qualitative arterial phase alone assessment to determine arterial hyperenhancement of HCCs, especially when using CT.