Double contrast-enhanced ultrasonography improves diagnostic accuracy of T staging compared with multi-detector computed tomography in gastric cancer patients

Figure 5 Images of T3 gastric cancer in a 58-year-old man. A: Gastroscopic image shows an ulcerative tumor; B: US image shows the hypoechoic tumor (arrow) with disruption of the mucosa, submucosa and muscularis propria. The outer margin of the serosa is slightly blurred; C: In the arterial phase, disruption of the mucosa, submucosa and muscularis propria are visualized. The lesion shows homogenous hyper-enhancement, similar to the normal submucosal layer; D: In the venous phase, the lesion shows homogenous hypo-enhancement. The hyper-enhancement strip of the submucosal layer and hypo-enhancement strip of the muscularis propria are disruptive. A few small linear stranding within the serosa is observed. The enhancing serosa is continuous.