2 The Current Main Types of CapsuleEndoscopy

Gastric diseases are great burden not only in China but also worldwide. Capsule endoscopy is a noninvasive tool in the exploration of the entire gastrointestinal tract. However, conventional capsule endoscopies have shown that observation of the stomach is highly variable because of the impossibility of thorough exploration of the gastric cavity with a passive power. The steerable capsules with external magnetic field may be the most viable approaches for active control, and several explorations have showed promising benefits. We have developed a novel magnetic-controlled capsule endoscopy system (MCE) with magnetic field generated by an external industry robot (provided by Ankon Technologies Inc.), which has been demonstrated to be safe and feasible in the examination of human stomach. For the main diagnostic outcomes, MCE and gastroscopy had very similar results (the overall agreement was more than 90 %). The acceptability of MCE was much higher than gastroscopy, and most patients could tolerate ingestion of the large amount of water. This comparative study showed that MCE is a promising alternative for noninvasive screening of gastric diseases.

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