Prospective Comparison of the Carbon Footprint of EUS vs MRCP for Evaluation of Suspected Choledocholithiasis
1 other identifier
observational
200
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Dec 2025
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2025
CompletedFirst Submitted
Initial submission to the registry
December 2, 2025
CompletedFirst Posted
Study publicly available on registry
December 15, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2026
January 6, 2026
October 1, 2025
11 months
December 2, 2025
January 4, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Total kg CO₂e per procedure for EUS vs MRCP.
Total kg CO₂e per procedure for EUS vs MRCP.
12 months
Secondary Outcomes (1)
Emissions
12 months
Study Arms (2)
EUS
Patients scheduled for Endoscopic Ultrasound
MRCP
Patients scheduled for Magnetic Resonance Cholangiopancreatography
Eligibility Criteria
Adult patients (\>18 years - 80years) with suspected choledocholithiasis and classified as intermediate risk per ESGE guidelines, undergoing either EUS or MRCP.
You may qualify if:
- Age ≥18 years
- Intermediate likelihood of CBD stone (per ESGE)
- Undergoing either MRCP or EUS for evaluation
You may not qualify if:
- High or low likelihood category (per ESGE)
- Undergoing both MRCP and EUS simultaneously
- Contraindications to either modality
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
AIG Hospitals
Hyderabad, Telangana, 500032, India
Related Publications (4)
• McAlister S et al. Radiology. 2021. Imaging footprint
RESULT• Lenzen M et al. Lancet Planet Health. 2020. Health care emissions
RESULT• Rughwani H et al. Gut. 2025. Carbon footprint of GIE
RESULT• Jagtap N et al. Gut. 2022. EUS versus MRCP RCT
RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 2, 2025
First Posted
December 15, 2025
Study Start
December 1, 2025
Primary Completion (Estimated)
November 1, 2026
Study Completion (Estimated)
November 1, 2026
Last Updated
January 6, 2026
Record last verified: 2025-10