Evaluation of a diagnostic algorithm of magnifying endoscopy with crystalviolet staining for duodenal epithelial tumors

Evaluation of a diagnostic algorithm of magnifying endoscopy with crystalviolet staining for duodenal epithelial tumors - Evaluation of a diagnostic algorithm of ME-CV for duodenal epithelial tumors

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000044679

Enrollment

Registered

2021-09-01

Start date

2021-08-20

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Duodenal epithelial tumors

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who diagnosed with duodenal epithelial tumors Patients over 20years old

Exclusion criteria

Exclusion criteria: Patients with residual recurrence after endoscopic treatment Patients who are considered difficult to register by the doctor

Design outcomes

Primary

Measure	Time frame
Positive and negative predictive value of theME-CV diagnostic algorithm	—

Secondary

Measure	Time frame
1. Comparison of the diagnostic performance between the white light endoscopy scoring system and the MECV diagnostic algorithm 2. Comparison of diagnostic performance between expert and non-expert groups 3. Comparison of the diagnostic Performance of the white light endoscopy scoring system and the MECV diagnostic algorithm according to mucin phenotype 4. Interobserver agreement between the white light endoscopy scoring system and the MECV diagnostic algorithm	—

Measure

Time frame

1. Comparison of the diagnostic performance between the white light endoscopy scoring system and the MECV diagnostic algorithm 2. Comparison of diagnostic performance between expert and non-expert groups 3. Comparison of the diagnostic Performance of the white light endoscopy scoring system and the MECV diagnostic algorithm according to mucin phenotype 4. Interobserver agreement between the white light endoscopy scoring system and the MECV diagnostic algorithm

—

Countries

Japan

Contacts

Public ContactYosuke Toya

Iwate Medical University Division of Gastroenterology and Hepatology, Department of Internal Medicine

ytoya@iwate-med.ac.jp+81-19-651-5111

Outcome results