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Abstract #2394

Blood oxygen level dependent MRI detects changes in hepatocellular carcinoma induced by sorafenib treatment

Keith Michel1, Nina Munoz2, Kiersten Maldonado1, James Bankson1, Jia Sun3, Aliya Qayyum4, and Rony Avritscher2

1Department of Imaging Physics, UT MD Anderson Cancer Center, Houston, TX, United States, 2Department of Interventional Radiology, UT MD Anderson Cancer Center, Houston, TX, United States, 3Department of Biostatistics, UT MD Anderson Cancer Center, Houston, TX, United States, 4Department of Diagnostic Radiology, UT MD Anderson Cancer Center, Houston, TX, United States

Imaging biomarkers are needed for assessing treatment response in hepatocellular carcinoma (HCC). We evaluated BOLD MRI with hyperoxic challenge in an orthotopic rodent model of HCC for animals treated with the widely used kinase inhibitor sorafenib. A reduction in ΔT2* in tumor and background liver was exhibited for rats treated with sorafenib relative to untreated controls, while no significant change was observed in skeletal muscle. These results demonstrate that BOLD MRI could be a useful tool for detecting treatment effects in HCC.

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