Focal liver lesions: Practical magnetic resonance imaging approach

Figure 9 Metastases. In- (A) and opposed-phase (B) GRE T1-WI, fat-suppressed FSE T2-WI (C), pre (D) and postcontrast fat-suppressed 3D-GRE T1-WI at the arterial (E), portal venous (F) and interstitial (G) phases. Multiple metastases are present throughout the liver, showing low signal intensity on T1-WI (A, B and D) and high signal intensity on T2-WI. Most of these lesions show hypervascular characteristics, while one in segment VII (arrow, E) shows ring enhancement. Late washout is perceived, a feature that is characteristic of carcinoid metastases (G). GRE: Gradient-echo; FSE: Fast spinecho; T1-WI: T1-weighted images.