Hypervascular hepatocellular carcinoma: detection with double arterial phase Multi-Detector Row Helical CT. - Murakami,T.; Kim,T.; Takamura,M.; Hori,M.; Takahashi,S.; Federle,M.P.; Tsuda,K.; Osuga,K.; Kawata,S.; Nakamura,H.; Kudo,M. (Radiology, 2001)