Significance of the Signal Intensity of Gadoxetic Acid-enhanced MR Imaging for Predicting the Efficacy of Hepatic Arterial Infusion Chemotherapy in Hepatocellular Carcinoma

Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine
Nobuhiro FujitaHiroshi Honda

Abstract

We attempted to clarify the relationship between the signal intensity (SI) in the hepatobiliary phase of gadoxetic acid-enhanced magnetic resonance (MR) imaging and the efficacy of hepatic arterial infusion chemotherapy (HAIC) in hepatocellular carcinomas (HCCs). We enrolled 14 patients with HCCs who underwent gadoxetic acid-enhanced MR imaging prior to HAIC using cisplatin and 5-fluorouracil. In the hepatobiliary phase, we calculated the SI of the HCCs and the background liver. In cases with multiple HCCs, we calculated the SI of the largest lesion. Patients were classified into high (n = 7) and low intensity (n = 7) groups based on the median value of the SI ratio (SI of the tumor/SI of the background liver). We analyzed progression-free survival using the Kaplan-Meier method and the log-rank test. In the 5 patients with a history of HCC surgery, we compared the expression of immunohistochemical organic anion-transporting polypeptide (OATP) 8 between the high and low intensity groups by chi-square test. The SI ratios were 0.568 ± 0.093 (mean ± standard deviation) in the high intensity group and 0.251 ± 0.086 in the low intensity group. Compared to the group with low signal intensity, the group with high signal intensity demon...Continue Reading

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Citations

Apr 23, 2021·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Yukihisa TakayamaKousei Ishigami
Jul 11, 2021·Magnetic Resonance Imaging Clinics of North America·Silvia D ChangVictoria Chernyak

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