a Prospective Study on the Efficacy of Magnifying Endoscopy With Narrow-band Imaging in Diagnosing Gastric Lesions

a Prospective Study on the Efficacy of Magnifying Endoscopy With Narrow-band Imaging in Diagnosing Gastric Lesions

Magnifying endoscopy with narrow-band imaging (ME-NBI) can emphasize surface pattern and microvascular architecture of the gastric mucosa.However,the usefulness and criteria of NBI for differential diagnosis among early gastric cancers (EGC) have not been fully established.The study is based on the hypothesis:

1. ME-NBI is useful in distinguishing EGC from other gastric lesions
2. ME-NBI is useful in further differential diagnosis among EGCs.

Inclusion Criteria:

• patients with gastric lesions which were detected by conventional screening endoscopy and suspected of early malignancy.

Exclusion Criteria:

• advanced gastric cancer or any other malignancy;
• patients under unsuitable conditions for examination or treatment, such as acute upper gastrointestinal bleeding, noncorrectable coagulopathy, severe systemic disease, etc;
• inability to provide informed consent;
• inability to provide histology of resected specimens after endoscopic treatment or surgery.