Prospective Comparison of the Carbon Footprint of EUS vs MRCP for Evaluation of Suspected Choledocholithiasis

Last updated: January 4, 2026
Sponsor: Asian Institute of Gastroenterology, India
Overall Status: Active - Recruiting

Phase

N/A

Condition

Gall Bladder Disorders

Treatment

N/A

Clinical Study ID

NCT07283185
EUS vs MRCP-CBD1
  • Ages 18-80
  • All Genders

Study Summary

MRCP and EUS are diagnostically equivalent in detecting CBD stones among patients with intermediate risk, as shown in a landmark RCT. However, MRI-based imaging is power-intensive, requiring large infrastructure and long scan durations. EUS, a less energy-consuming and portable procedure, has the added advantage of enabling same-session ERCP, reducing the need for repeat procedures.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Age ≥18 years

  • Intermediate likelihood of CBD stone (per ESGE)

  • Undergoing either MRCP or EUS for evaluation

Exclusion

Exclusion Criteria:

  • High or low likelihood category (per ESGE)

  • Undergoing both MRCP and EUS simultaneously

  • Contraindications to either modality

Study Design

Total Participants: 200
Study Start date:
December 01, 2025
Estimated Completion Date:
November 30, 2026

Study Description

MRCP and EUS are diagnostically equivalent in detecting CBD stones among patients with intermediate risk, as shown in a landmark RCT. However, MRI-based imaging is power-intensive, requiring large infrastructure and long scan durations. EUS, a less energy-consuming and portable procedure, has the added advantage of enabling same-session ERCP, reducing the need for repeat procedures. Prior research confirms that diagnostic EUS generates significantly less CO₂e per procedure compared to radiologic imaging. This study aims to support sustainable diagnostic choices by quantifying their environmental footprint.

Connect with a study center

  • AIG Hospitals

    Hyderabad 1269843, Telangana 1254788 500032
    India

    Active - Recruiting

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