Assessment of Colorectal Polyp Detection by Short-Axis Direction:Retrospective study

Assessment of Colorectal Polyp Detection by Short-Axis Direction:Retrospective study - Assessment of Colorectal Polyp Detection by Short-Axis Direction:Retrospective study

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000055817

Enrollment

522

Registered

2024-10-12

Start date

2022-12-01

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 Polyp

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Colorectal lesions newly detected and endoscopically resected during the study period, lesions for which adequate still images were available to assess the short axis, and lesions with complete information regarding the examination and lesion characteristics.

Exclusion criteria

Exclusion criteria: Cases with missing information, cases in which polyps had been identified in prior colonoscopy, cases with active bleeding, post-colorectal cancer surgery cases, patients with inflammatory bowel disease, and those with lesions pathologically diagnosed as neuroendocrine tumors were excluded from the analysis.

Design outcomes

Primary

Measure	Time frame
The short-axis direction of the colon was divided into eight directions (A-H), and the direction of each detected polyp was recorded. Polyp detection rates were compared across the short-axis directions and clinicopathological features, including lesion size, location, macroscopic type, and examiner experience.	—

Countries

Japan

Contacts

Public ContactAtsushi Katagiri

Showa University School of Medicine Department of Medicine, Division of Gastroenterology

katsushi@med.showa-u.ac.jp0337848535

Outcome results