Systematic alphanumeric-coded endoscopy (SACE)

Systematic alphanumeric-coded endoscopy (SACE) provides a reconstructed illustration of complete photo documentation of the upper gastrointestinal tract. The 28-image report facilitates identifying and localizing upper gastrointestinal lesions, in addition to standardizing the examination that may reduce interobserver variability. SACE organizes endoscopic photos by anatomic location: 1, hypopharynx; 2, esophagus, upper third; 3, esophagus, middle third; 4, esophagus, lower third; 5, esophagogastric junction; 6, pyloric channel; 7, antrum, anterior wall; 8, antrum, lesser curvature; 9, antrum, posterior wall; 10, antrum, greater curvature; 11, lower third, anterior wall; 12, lower third, lesser curvature; 13, lower third, posterior wall; 14, lower third, greater curve; 15, middle third, anterior wall; 16, middle third, lesser curve; 17, middle third, posterior wall; 18, middle third, greater curvature; 19, upper third, greater curvature; 20, upper third, anteroposterior wall; 21, fornix; 22, cardia; 23, lesser curvature, upper third; 24, lesser curvature, middle third; 25, lesser curvature, lower third; 26, incisura angularis; 27, duodenal bulb; 28, duodenum, second portion.