Diffusion-weighted imaging of biliopancreatic disorders: Correlation with conventional magnetic resonance imaging

Figure 8 Gallbladder carcinoma in a 70-year-old man. A: DWI at b = 1000 s/mm² shows high signal intensity in the mass occupying the entire gallbladder (asterisk), which invades the hepatic parenchyma adjacent to the gallbladder (arrowheads); B: Gallbladder carcinoma with direct liver invasion (arrowheads) is less conspicuous on contrast-enhanced, fat-saturated T1-weighted images than on DWI; C: Fused positron emission tomography-CT image confirms intense hypermetabolism (asterisk) in the gallbladder carcinoma with direct liver invasion adjacent to the gallbladder. DWI: Diffusion-weighted magnetic resonance imaging; CT: Computed tomography.