Predicting liver metastasis of gastrointestinal tract cancer by diffusion-weighted imaging of apparent diffusion coefficient values

Figure 1 Diffusion-weighted imaging results for patients with liver metastasis of gastrointestinal tract cancer. A: Diffusion-weighted imaging (DWI) figure shows right anterior lobe of liver with surrounding high signal, clear boundary, and significant contrast; B: DWI figure shows the right posterior lobes of livers with huge and irregular high signal intensity; surrounding small satellite focus were visible with a blending tendency, clear boundary, and significant contrast.

Figure 2 Receiver operating characteristic curve. Area under the curve is 0.934, the optimal diagnostic point is 1.14 × 10^-3 mm²/s, and sensitivity and specificity are 94.3% and 76.7%, respectively.