coronary artery disease
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. *18 years old 2. At least 1 de-novo lesion in 1 or more major epicardial vessels of 40-90% angiographic stenosis with a reference vessel size *2.5mm in the diseased segment by visual estimate 3. Able and willing to provide informed consent
Exclusion criteria
Exclusion criteria: 1. Presenting with an acute coronary syndrome (ACS), or documented ACS within 4 weeks prior to the scheduled index procedure 2. Cardiogenic shock (sustained (>10 min) systolic blood pressure
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy of the image-derived iFR and FFR estimate for a given lesion compared to the corresponding invasive iFR and FFR yields a sensitivity * 75% and specificity * 80% | — |
Secondary
| Measure | Time frame |
|---|---|
| * Diagnostic agreement between the angiographic derived iFR/FFR estimate and the reference invasive measure for the same lesion is within the inherent measurement variability * Superior specificity of the iFR/FFR estimate over visual determination of stenosis severity based on the angiogram alone (i.e., *50% diameter stenosis) * Inter- and intra-observer diagnostic and measurement agreement between repeated estimates made by the medical software device for a given lesion * Diagnostic agreement measures: * Diagnostic accuracy * Positive (PPV) and negative predictive values (NPV) * Area under the Received Operating Characteristics (ROC) curve (AUC) * Positive and negative likelihood ratios * Diagnostic odds ratio | — |
Countries
Netherlands