Noninvasive prediction of Ki-67 expression in pancreatic cancer via contrast-enhanced ultrasound quantitative parameters: A diagnostic model study

Figure 6 Imaging features and pathological manifestations of pancreatic cancer patients in the Ki-67 high-expression group. A: Image in the arterial phase, with enhancement pattern type III. The arrow indicates the tumor lesion; B: Image in the venous phase, with enhancement pattern type III. The arrow indicates the tumor lesion; C: The time-intensity curve. The X-axis represents time (second), and the Y-axis represents signal intensity (%). The orange curve represents the surrounding normal pancreatic tissue, and the green curve represents pancreatic cancer; D: The pathological section stained with hematoxylin-eosin (HE) shows pancreatic ductal adenocarcinoma (HE, × 100). TIC: Time-intensity curve.