Gastric Tumors
Conditions
Keywords
near focus with narrow band imaging, tumor margin, indigocarmine chromoendoscopy
Brief summary
Near-focus with narrow-band imaging is a novel technique to improve the quality of images of the irregular mucosal structures and microvessels of gastric neoplasms. The investigators compare this technique with indio carmin spray, commonly used tool to determine tumor margin. The subject are patients who underwent endoscopic submucosal dissection for gastric neoplasms. Participants are randomized into near-focus with narrow-band imaging and indigo carmin groups. First, marking is performed at the tumor margins determined by each modality. The distance from the marking dots to the tumor margin is measured histopathologically in the resected specimens. Finally, the investigators will compare the accuracy between two groups based on the distance from marking dots to tumor margin measured by histopathologic examination.
Interventions
DEVICENear focus with narrow band imaging
Sponsors
Kyunghee University Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Participants who undergo endoscopic submucosal dissection for gastric tumors (early gastric carcinoma or gastric adenoma)
Exclusion criteria
* fail to en bloc resection
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accuracy (accurate if the distance (between margin dots and tumor margin measured by histopathology) was less than 1 mm) | 1 week after procedure | Marking was diagnosed as accurate if the distance (between margin dots and tumor margin measured by histopathology) was less than 1 mm |
Countries
South Korea
Outcome results
None listed