Computed tomographic <unk> , also called virtual gastroscopy (VG), is a noninvasive procedure for the detection of gastric abnormalities. Multiple X-rays are used to create a 3-Dimensional image of the organ, allowing abnormalities to be detected.
CT Gastrography
Magnetogastrography
EGS 
GI cocktail
Upper gastrointestinal series
Computed tomography enterography
Gastric emptying scan
Lower gastrointestinal series