multicenter study for developing universal NBI colorectal classification with magnifying endoscopy in Japan.

multicenter study for developing universal NBI colorectal classification with magnifying endoscopy in Japan. - validation study of tentative NBI classification in colon

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000010292

Enrollment

2500

Registered

2013-03-25

Start date

2013-04-01

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

colorectal lesion

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 25 specialists of endoscopy with interpretting 100 endoscopic images

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
performance characteristics (sensitivity, specificity, accuracy, positive predictive value, negative predictive value)	—

Secondary

Measure	Time frame
high confidence rate	—

Countries

Japan

Contacts

Public ContactMineo Iwatate

Sano Hospital Gastrointestinal Center

m.iwatate15@gmail.com078-785-1000

Outcome results