Diagnostic Value of Semiquantitative Analysis of Dynamic Susceptibility Contrast Magnetic Resonance Imaging with GD-EOB-DTPA in Focal Liver Lesions Characterization: A Feasibility Study

Figure 1

A 44-year-old man with gallbladder stones was evaluated. The MR imaging shows a focal lesion in the right lobe. (a, b) Axial arterial and delayed postcontrast injection images show irregular well-defined lesion, characterized by globular pattern enhancement at the periphery of the lesion in the arterial phase, with intensity signal that increases during delayed phase. (c) Axial T1-weighted in-phase echo-gradient sequence shows a homogeneous hypointense well-defined irregular nodular area in the seventh segment. (d) Axial T2 fat-sat weighted sequence shows well-defined nodular area, with high intensity signal. (e, f) On colour perfusion maps (Relative Arterial Enhancement and Relative Late Enhancement, resp.) the lesion corresponds to hypovascularized area, characterized by high vascularity hot-spots signals along the boundary of the lesion.

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