Table 2.

Characteristics of the validation video sets (the high-speed validation video sets).

Patient characteristics (n = 40)
Sex (n), (male/female)	36/4
Age (years), [median(range)]	70 (57–83)
Lesion characteristics (n = 22)
Tumor size (mm), [median(range)]	17 (5–60)
Depth of tumor (n), (EP/LPM/MM/SM)	8/10/3/1
Macroscopic type (n), (0-I/0-IIa/0-IIb/0-IIc)	0/2/4/16
Part of esophagus (n), (Ce/Ut/Mt/Lt)	0/6/11/5
Region (n), (anterior/posterior/left/right)	8/4/8/2

EP: epithelium, LPM: lamina propria, MM: muscularis mucosae, SM: submucosa Ce: cervical esophagus, Ut: upper thoracic esophagus, Mt: middle thoracic esophagus, Lt: lower thoracic esophagus.