The Learning Curve of Probe-based Confocal Laser Endomicroscopy (pCLE) Images Interpretation in Gastric Intestinal Metaplasia (GIM)
NCT ID: NCT01491724
Last Updated: 2011-12-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
5 participants
OBSERVATIONAL
2011-09-30
2012-04-30
Brief Summary
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Objective:
The aim of this study is to evaluate the learning curve of pCLE images interpretation in GIM.
Research design:
Blinded review of pCLE images for the diagnosis of GIM
Sample size:
Five beginner endoscopists will be assigned in this study to read approximately 80 videoclips
Data analysis:
ROC curve is analyzed by SPSS version 16.
Expected Benefit and Clinical Application Information on the learning curve for GIM interpretation from pCLE images in order to develop early gastric cancer detection
Detailed Description
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Gastric cancer remains the second leading cause of cancer related death in the world. The incidence and mortality rate is predominant in East Asia\[1\]. Usually, gastric cancer is asymptomatic in early stage; therefore, most patients are in the advanced stage and incurable at diagnosis. The pathogenesis of intestinal type gastric cancer is sequential and multistep pathway. Gastric intestinal metaplasia (GIM) is the precancerous lesion for intestinal type gastric cancer\[2\]. The strategies which can detect precancerous and/or early cancerous transformation are very beneficial because only early gastric cancer can potentially be cured by endoscopic treatment. Probe-based confocal laser endomicroscope or pCLE is useful for GIM detection with 94% in sensitivity\[3\]. However, this perfect sensitivity in pCLE interpretation is provided in only expertise. We still do not know how to be an expert in GIM interpretation. No study about learning curve in GIM interpretation by pCLE published
Observation and Measurement:
Collect the accuracy in GIM interpretation from pCLE reported in ROC curve
Methodology:
1. Six inexperienced pCLE readers were recruited.
2. All inexperienced pCLE readers must attend the learning session.
3. Self-review from CD is recommended for all inexperienced pCLE readers
4. Two-week interval for examination in GIM interpretation from 20 new histology-proved pCLE images (GIM and normal mucosa) for 5 sessions are on schedule after training session.
5. All Inexperienced pCLE readers need to review the training CD at least a day before each examination.
6. The accuracy rate in each examination will be recorded individually for each inexperienced pCLE reader.
7. ROC curve is reported for learning curve in GIM interpretation from pCLE images.
Data collection:
All data will be processed and recorded by one physician.
Conditions
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Study Design
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CROSS_SECTIONAL
Study Groups
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pCLE images
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
ALL
No
Sponsors
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King Chulalongkorn Memorial Hospital
OTHER
Responsible Party
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Rapat Pittayanon, MD
Principle investigator
Principal Investigators
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Rungsun Rerknimitr, Professor
Role: STUDY_DIRECTOR
King Chulalongkorn Memorial Hospital
Rapat Pittayanon, MD
Role: PRINCIPAL_INVESTIGATOR
King Chulalongkron Memorial Hospital
Locations
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Rapat Pittayanon
Bangkok, Bangkok, Thailand
Countries
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Central Contacts
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Facility Contacts
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Rapat Pittayanon, MD
Role: primary
Nuttapaht Namjud, M.Sc
Role: backup
Related Links
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Related Info
Other Identifiers
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RP001
Identifier Type: -
Identifier Source: org_study_id