- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06322355
Comparison of UFR With QFR in Stable Coronary Artery Disease
Comparison of Flow Ratio Derived From Intravascular Ultrasound With Coronary Angiography in Stable Coronary Artery Disease: Correlation With Fractional Flow Reserve
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Coronary artery disease (CAD) remains a prevalent global health concern, necessitating precise diagnostic strategies for optimal patient management. Fractional Flow Reserve (FFR), defined as the distal-to-proximal pressure ratio across a coronary stenosis during maximal hyperemia and typically measured by a pressure guidewire during coronary angiography (CAG), is considered a gold standard tool for detecting ischemia-causing stenosis and guiding revascularization decisions. However, wire-based FFR has been significantly underutilized due to practical reasons, including its invasive nature and the requirement for hyperemia. Consequently, there is growing interest in developing and validating computational FFR from anatomical information derived from CAG and intravascular imaging modalities, such as intravascular ultrasound (IVUS).
Quantitative flow reserve (QFR), derived from CAG, has been extensively investigated and has demonstrated high diagnostic performance for detecting hemodynamically significant lesions. Beyond CAG, research has indicated that IVUS imaging can also be utilized for computing FFR. IVUS, a widely accepted and powerful modality for evaluating vessel luminal size and characterizing plaque morphology in the context of coronary intervention, has given rise to IVUS-based FFR, known as ultrasonic flow ratio (UFR). UFR has been recently developed, integrating an estimation of physiology with intravascular imaging in the same IVUS pullback. Despite the proven effectiveness of both UFR and QFR, there is currently no evidence supporting the superiority of one technique over the other. In the present study, investigators aim to compare the diagnostic performance of UFR and QFR for the detection of functionally significant coronary lesions, using conventional FFR as the gold standard.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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-
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Shanghai, China, 210000
- Zhongshan Hospital, Fudan University
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients who underwent both IVUS imaging and FFR measurement on the same artery
Exclusion Criteria:
- Inadequate quality of CAG or IVUS images for QFR or UFR calculation
- Left main or ostial right coronary artery lesion
- The use of balloon predilatation or stent placement prior to FFR measurement or IVUS imaging
- Incomplete IVUS pullback across the entire lesion segment
- The presence of a severe myocardial bridge (defined as ≥30% systolic diameter stenosis) in the examined vessel
- History of previous coronary artery bypass grafting,
- Left ventricular ejection fraction <35%
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Compare diagnostic performance of QFR with UFR
Time Frame: baseline
|
baseline
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Correlation and agreement between QFR and UFR
Time Frame: baseline
|
baseline
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- ZSUFR01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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