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In this prospective cohort study, 250 patients with suspected or known CAD and at least one intermediate coronary lesion (50-70% stenosis) who had a NiFFR value greater than 0.80 underwent coronary computed tomography angiography (CCTA) with NiFFR assessment. Patients were followed for one year to monitor for MACE
This prospective cohort includes people with known or suspected CAD who had both CCTA and ICA with this index (FFR) measurements. Patients were enrolled if they had at least one intermediate coronary lesion (classified as 50-70% diameter stenosis on visual judgment) on CCTA and then underwent FFR testing.
Data about the patients was acquired from the Professor Kojuri registry. The database provided demographic information for instance age, gender, CAD family history, prior CAD history, hypertension (HTN), diabetes mellitus (DM), and hyperlipidaemia (HLP). The prevalence of cigarette smoking and the ejection fraction of the left ventricle. Lesion and Vessel Characteristics were also collected from registry.
The target vessel was identified (LAD, RCA, LCX, or LMC), the lesion was located (proximal, mid, or bifurcation), the vessel diameters were measured (proximal, distal, stenotic), and the lesion length was determined. Measurements were taken using CCTA datasets using semi-automated software methods.
Patients were clinically monitored for one year after examination. The primary outcome was the occurrence of major cardiovascular consequences, or MACE, which included cardiac-related death, acute coronary syndrome (ACS), unexpected revascularisation, and hospitalization for cardiac reasons. Throughout the one-year study period, all participants were visited every three months and followed up with phone calls.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| nonsignificant NIFFR | Experimental | patients with coronary artery lesion in CT angiography, with NIFFR of more than 0.8 |
|
| significant NIFFR | Active Comparator | patients with coronary artery lesion in CT angiography, with NIFFR of more than 0.8 |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| NIFFR | Diagnostic Test | Fractional flow reserve derived from CT angiography from lesion between 50-70% |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of patients with MACE | Number of patients with Major adverse cardiac events,which included cardiac-related death, acute coronary syndrome (ACS), unexpected revascularisation, and hospitalization for cardiac reasons, stroke | 1 year |
| Number of patients with bleeding | Number of patients with major or minor bleeding based on BARC classification | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Number of patients with dyspnoea | Number of patients with minor and major dyspnoea ( based on that it affect daily activity or tolerable or not) | 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| javad UOM kojuri | Contact | 09171115083 | kojurij@yahoo.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Professor Kojuri Cardiology Clinic | Recruiting | Shiraz | Fars | 55318 | Iran |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 41888687 | Derived | Khalafinezhad H, Zarifkar H, Vafa RG, Zarifkar H, Mirrhosseini A, Kojuri J. Evaluation of the ability of CTFFR to determine non-significant lesions of coronary disease based on MACE in one-year follow-up of patients (seeing beyond the stenosis: CTFFR and MACE in a one-year follow-up). BMC Cardiovasc Disord. 2026 Mar 26;26(1):393. doi: 10.1186/s12872-026-05782-0. |
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data sharing by rational request
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NIFFR of coronary less than 0.8
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