Coronary microvascular disease
Conditions
Interventions
Observation group:None
Sponsors
Peking University First Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Patients undergoing coronary angiography in the Department of Cardiology, Peking University First Hospital; 2. Complete baseline clinical information; 3. Have coronary angiography results, and coronary angiography shows coronary stenosis <50%; 4. Have both fundus image information, and the picture quality is good; 5. Age 18 and above, male or female; 6. Study participants voluntarily participate in this clinical study and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Clearly existing severe fundus disease; 2. Severe cataract and other diseases, poor image quality; 3. The target coronary artery provides collateral circulation for chronic total occlusion lesions; 4. The target coronary angiography agent is poorly filled, the blood vessels overlap or are severely distorted, and the lesion location cannot be fully exposed; 5. Coronary angiography images are of poor quality and cannot be clearly identified.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Coronary angiography-derived index of microcirculatory resistance;Retinal image; | — |
Countries
China
Contacts
Public ContactXingyu Luo
Peking University First Hospital
Outcome results
None listed