None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Inclusion Criteria for Healthy Volunteers (1) Age 18-75 years (2) No symptoms of digestive discomfort such as nausea, vomiting, acid reflux, bloating, abdominal pain, or diarrhea within the past year (3) No history of allergy to polyglucosamine (4) Able to tolerate general anesthesia (5) Signed informed consent 2. Inclusion Criteria for Mucosal Lesion Group (1) Age 18-75 years (2)Diagnosed with esophageal or gastric mucosal lesions via endoscopy (3) No symptoms of digestive discomfort such as nausea, vomiting, acid reflux, bloating, abdominal pain, or diarrhea within the past year (4) No history of allergy to polyglucosamine (5) Able to tolerate general anesthesia (6) Signed informed consent 3. Inclusion Criteria for Submucosal Lesion Group (1) Age 18-75 years (2) Diagnosed with gastrointestinal submucosal tumors (SMT) and scheduled for an endoscopic ultrasound (EUS) examination (3) No symptoms of digestive discomfort such as nausea, vomiting, acid reflux, bloating, abdominal pain, or diarrhea within the past year (4) No history of allergy to polyglucosamine (5) Able to tolerate general anesthesia (6) Signed informed consent
Exclusion criteria
Exclusion criteria: (1) Pregnancy (2) Subject refusal (3) Subjects unable to cooperate with the examination for any reason (4) History of inflammatory bowel disease or intestinal obstruction (5) Patients who have used anticoagulants within the past week or have coagulation disorders (6) Patients deemed unsuitable for inclusion in the study by the researcher for any other reason
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Image Quality; | — |
Countries
China
Contacts
Second Affiliated Hospital of Soochow University