Clinical Research Directory
Browse clinical research sites, groups, and studies.
A Multi-center, Real-World Clinical Trial of caIMR on Two Specific Kinds of Patients.
Sponsor: Ge Junbo
Summary
The coronary angiography-derived index of microcirculatory resistance (caIMR) can be used to provide a binary assessment whether patients（with stable angina, unstable angina, suspected myocardial ischemia, or coronary artery stenosis of less than 50%, and without cardiomyopathy or obstructive epicardial coronary artery disease） have microcirculatory dysfunction, using a cutoff value of 25. This study aims to evaluate the binary classification performance of caIMR in two specific groups of patients: (1) those with caIMR values between 20 and 30, and (2) those with diffuse disease. We will do this by looking at differences in their Seattle Angina Questionnaire (SAQ) scores and their health outcomes over a three-year period.
Official title: A Multi-center, Real-World Clinical Trial on Assessment of Microcirculatory Status Using Online Coronary Angiography-Derived Index of Microcirculatory Resistance (caIMR) (Flash V)
Key Details
Gender
All
Age Range
18 Years - 80 Years
Study Type
OBSERVATIONAL
Enrollment
508
Start Date
2025-07-01
Completion Date
2029-12-30
Last Updated
2025-04-27
Healthy Volunteers
No
Conditions
Interventions
caIMR
caIMR will be measured by pressure sensors which are produced by Suzhou Rainmed Medical Technology Co., Ltd. caIMR is calculated based on angiography images and Hyperemic Pa estimated from resting Pa according to prespecified equation