Passive video capsule endoscopy is the criterion standard for small-bowel diseases but cannot be used for the large gastric cavity.This blinded prospective study investigates the accuracy of the magnetic-controlled capsule endoscopy compared to gastroscopy in patients with gastric symptoms and indication for upper GI Endoscopy.

Inclusion Criteria:

• Patients with gastric symptoms and indicated for Upper GI endoscopy
• Age of 18 years to 70 years

Exclusion Criteria:

• Patients with impaired bowel movement from ileus or organic digestive diseases
• Patients with known large and obstructing tumors of the upper GI tract
• Patients after upper GI surgery or abdominal surgery altering GI anatomy
• Patients under full anticoagulation
• Patient in poor general condition
• Patients using equipment that may be affected by radio transmission
• Patients using equipment that may be affected by magnetic field
• Pregnancy or suspected pregnancy