Capsule endoscopy is used to image the small intestine! Since colonoscopy only looks at the colon/last part of small intestine, and upper endoscopy only looks at the stomach and first bit of small intestine, a pill-cam is needed to look at the 20 feet of small bowel! A double balloon endoscopy is another option but its more invasive! I the capsule endoscopy performed as part of my anemia workup - and thank goodness results showed my small bowel was normal. We also use the test to evaluate for sm

Steps of Diagnostic Upper GI Endoscopy - Dr S Easwaramoorthy

Gastroscopy