Focal liver lesions: Practical magnetic resonance imaging approach

Figure 11 Stereotypical simplified schema, showing magnetic resonance imaging features of malignant focal liver lesions. The represented metastasis exemplifies the typical appearance of a hypovascular metastasis (the most common type). FS T2-WI: Fat-suppressed T2-weighted image; T1-WI IP: T1-weighted in-phase image; T1-WI OP: T1-weighted out-of-phase image; T1-WI AP: Post-contrast fat-suppressed T1-weighted image at the late arterial phase; T1-WI PVP: Post-contrast fat-suppressed T1-weighted image at the portal-venous phase; T1-WI Inter P: Post-contrast fat-suppressed T1-weighted image at the interstitial phase; T1-WI HBP: Post-contrast fat-suppressed T1-weighted image at the hepatobiliary phase (with hepatocyte-specific contrast agent); HCC: Hepatocellular carcinomas; IHC: Intrahepatic cholangiocarcinomas.