NCT07283185

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

Prospective Comparison of the Carbon Footprint of Endoscopic Ultrasound (EUS) vs Magnetic Resonance Cholangiopancreatography (MRCP) for Evaluation of Suspected Choledocholithiasis

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 200 (estimated)
• Sponsor: Asian Institute of Gastroenterology, India · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

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.

Detailed 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.

Conditions

• Choledocholithiasis

Timeline

• Start date: 2025-12-01
• Primary completion: 2026-11-01
• Completion: 2026-11-01
• First posted: 2025-12-15
• Last updated: 2026-01-06

Locations

1 site across 1 country: India