Abstract: To investigate the application value and detection rate of upper gastrointestinal angiography and CT scan in the diagnosis of gastric tumors. All patients underwent CT scan and upper gastrointestinal angiography, and took the clinical/gastroscopy results as the gold standard. Compared with the gold standard, there was no significant difference in the accuracy, specificity and sensitivity of CT scan and upper gastrointestinal angiography (P>0.05).Both upper gastrointestinal angiography and CT scan can effectively diagnose gastric tumors. However, for larger lesions, CT scan is more advantageous, and small for the lesions, the advantages of the upper gastrointestinal angiography are more obvious. When the lesions invade the muscular layer and submucosa, the upper gastrointestinal angiography is more sensitive. The combination of the two is the most ideal for clinical application value.

Key words: gastric cancer, upper gastrointestinal angiography, CT scan, gastric tumor