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BLI (Blue Light Imaging) for the Histological Characterization of Colorectal Polyps

NCT03274115 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 600

Last updated 2019-10-02

No results posted yet for this study

Summary

The accuracy of real-time histology prediction (hyperplastic vs. adenomas) of colonic polyps using white light high-definition endoscopes is suboptimal. Blue laser imaging (BLI) is a new system for image-enhanced endoscopy using laser light, that is incorporated in the last generation Fuji high- definition videocolonscopes ELUXEO. Blue laser imaging (BLI) utilizes two monochromatic lasers instead of xenon light: a 410 nm laser visualizes vascular microarchitecture, similar to narrow band imaging, and a 450 nm laser provides white light by excitation.This system should enhance the microvascular pattern of superficial lesions, making the histological prediction easier.

Aim of the study is to compare the accuracy of white light and BLI systems in real-time histology prediction of colonic polyps.

For this purpose all colonscopies will be performed in a standard fashion using white light. When a polyps \<10mm in size will be identified, patients will be randomized in two groups. In the Group 1 (White Light Grroup), all polyps \<10mm will be evaluated with white light and prediction of histology (hyperplastic versus adenomatous) will be made by means of white light. In the Group 2 (BLI Group) , all polyps \<10mm in size will be evaluated with BLI and scored as hyperplastic (type 1) or adenomatous (type 2) by applying the NICE (Narrow-band Imaging International Colorectal Endoscopic) classification, indicating color/vessel/surface pattern. The level of endoscopist's confidence in predicting histology (high or low confidence) for any polyp will be also recorded.

Diagnostic performances of the endoscopists (sensitivity, specificity, positive and negative predictive values) will be calculated comparing endoscopist's prediction and pathology report, considered as reference standard in both study groups in order to evaluate the accuracy of real-time histology prediction by using BLI or white light.

Conditions

  • Adenoma Colon

Interventions

DEVICE

BLI (Blue Laser Imaging)

Switch from white light to BLI (Blue Laser Imaging) to predict the histology of colonic polyps

Sponsors & Collaborators

  • Valduce Hospital

    lead OTHER

Principal Investigators

  • Franco Radaelli · Valduce Hospital

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-07-01
Primary Completion
2017-12-01
Completion
2017-12-30

Countries

  • Italy

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03274115 on ClinicalTrials.gov