Fig. 1From: Measuring distance from the incisors to the esophageal cancer by FDG PET/CT: endoscopy as the referenceBy mimicking the pathway of the endoscope, a polyline (green) was drawn from the patient’s incisor along the oral cavity, inferior margin of the palate, pharynx, and esophagus to the proximal esophageal tumor margin on the fused sagittal PET/CT imageBack to article page