healthy control
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Persons aged over 20 years-old who give a written informed consent. 2. Patients who admitted for colon polypectomy.
Exclusion criteria
Exclusion criteria: 1. Persons who cannot undergo ultrasound safely. 2. Persons who have allergy for Sonazoid. 3. Persons who have allergy for eggs or egg products. 4. Persons who have shunts in heart or lungs. 5. Severe heart disease patients. 6. Severe pulmonary disease patients. 7. Patients who have acute disease that needs admission or within two weeks from discharge. 8. Patients who are disqualified for the study by their physicians.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| analysis of blood stream of healthy colon by enhanced ultrasound (mean area under the curve max intensity, time to peak etc.) | — |
Secondary
| Measure | Time frame |
|---|---|
| healthy colon wall thickness (mm) | — |
Countries
Japan
Contacts
Hokkaido University Hospital Institutional Review Board