Abstract #3191

Feasibility of measuring the T1 relaxation times before and after Gd-EOB-DTPA administration for characterization of liver tumors

Yoshihiko Fukukura¹, Takashi Iwanaga², Yuichi Kumagae¹, Hiroto Hakamada¹, Koji Takumi¹, Kiyohisa Kamimura¹, Masanoari Nakajo¹, Hiroshi Imai³, and Takashi Yoshiura¹

¹Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan, ²Radiological Technology, Kagoshima University Hospital, Kagoshima, Japan, ³Siemens Healthcare K.K., Tokyo, Japan

This study focused on the potential of T1 relaxation times measurement before and 20 min after Gd-EOB-DTPA administration to characterize liver tumors. T1 relaxation before Gd-EOB-DTPA administration showed the highest area under the receiver operating characteristic (ROC) curve for distinguishing hemangiomas and HCCs. T1 relaxation times 20 min after Gd-EOB-DTPA administration showed the highest the area under the ROC curve for differentiating HCCs from metastases. ΔR1 was considered to be useful for differentiation between hemangiomas and metastases because of the highest the area under the ROC curve.

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