The technique involves the use of a<unk>  at the end of a special<unk>  camera and an overtube, which is a tube that fits over the endoscope, and which is also fitted with a<unk> . The procedure is usually done under general anesthesia, but may be done with the use of conscious sedation. The<unk>  and overtube are inserted through the mouth and passed in conventional fashion (that is, as with gastroscopy) into the small bowel. Following this, the endoscope is advanced a small distance in front of the overtube and the<unk>  at the end is inflated. Using the assistance of friction at the interface of the<unk>  and intestinal wall, the small bowel is accordioned back to the overtube. The overtube<unk>  is then deployed, and the<unk> <unk>  is deflated. The process is then continued until the entire small bowel is visualized. The<unk>  can also be passed in retrograde fashion, through the colon and into the ileum to visualize the end of the small bowel.
Double-balloon enteroscopy
Computed tomography enterography
Magnetic resonance enterography
Stool test
Enteroscopy
Fecal pH test
Capsule endoscopy
GI cocktail