2Sommer C M,Schwarzwaelder C B,Stiller W,et al.Iodine removal in in-travenous dual-energy CT-cholangiography:Is virtual non-enhancedimaging effective to replacetruenon-enhancedimaging[J].EuropeanJour-nalofRadiology,2012,81 (4):692-699.
3Sun,C.-J.,Li,C.,Yu,J.-M.et al.Comparison of 64-slice CT perfu-sion imaging with contrast-enhanced CT for evaluating the target vol-ume for three -dimensional conformal radiotherapy in the rabbit VX2brain tumor model[J].Journal of Radiation Research,2012,.53 (3):454-461.
