Analysis And Research Of The Endoscopic Ultrasonography Image Of Esophageal Granular Cell Tumor By Computer Software

Objective:To analyze endoscopic ultrasonography (EUS) image of esophageal granular cell tumor (GCT) by computer image analysis software, and to explors its diagn ostic and differential diagnostic value.Methods:Eight esophageal GCT and eight leiomyomas confirmed by pathological and immunohistochenical examination were collectd, mean gray value and gray value standard deviation of EUS image of the leisons were analyzed by computer ima ge analysis software.The comparison of two groups was analyzed by t test.Results:The endoscopic and ultrasound images of esophageal GCT and leiomyomas was67.51and51.76, the difference was statistically significant (t=2.225,P=0.04 3).However,there was no significant difference in the standard deviation of gray value (13.54vs13.12, t=0.225, P=0.825).Conclusion:The accuracy of GCT diagnosed by EUS could be increased by comparing the gray values of EUS images of esophageal GCT and leiomyomas.