Detection of early gastric cancer using hydro-stomach CT: Blinded vs unblinded analysis

Figure 3 Early gastric cancer in a 62-year-old man. The size of tumor was 2.2 cm at the longest diameter and the tumor extended to submucosal layer. A: The transverse computed tomography scan shows thickened wall with enhancement in greater curvature of gastric antrum (arrow), which was true lesion based on gastroscopy and pathologic examination; B: Reviewer 1 indicated a lesion (arrow) as a cancer focus because thickened wall was suspicious on blinded analysis. However, on unblinded analysis, focal lesion (arrow) in greater curvature of gastric antrum in lower gastric 1/3 segment was indicated correctly.