Background: There are many diseases that involve the gastrointestinal tract Treatment depends upon specific diagnosis This involves identifying both the nature of the disease and its precise location within the GI tract
Examples of common diseases Ulcers Cancers Inflammation (colitis, ileitis,gastritis) Arteriovenous malformations Infections
Problem: How to visualize the gastrointestinal tract in order to diagnose and treat?
ANATOMIC DISTRIBUTION Gastrointestinal Tract Stomach Small bowel Rectum Colon Esophagus
Endoscopic view of gastric ulcer
We were still left with about 20 feet of small bowel that could not be reached by endoscopes from above and below
Antenna ASIC transmitter Batteries CMOS imager Lens Illuminating LEDs Schematic diagram of M2A capsule
Normal
Arteriovenous malformation
Arteriovenous malformation with active bleeding
NSAID ulceration
Ischemic ulceration
Carcinoid tumor