Inclusion criteria
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(1) Age ≥18 years |
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(2) Patients scheduled to undergo clinically-indicated non-emergent invasive coronary angiography |
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Exclusion criteria
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(1) Known coronary artery disease (myocardial infarction, percutaneous coronary interventions, coronary artery bypass graft) |
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(2) Hemodynamic instability |
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(3) Inability to provide written informed consent |
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(4) Concomitant participation in another clinical trial in which an individual is subject to investigational drug or device |
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(5) Pregnancy or unknown pregnancy status |
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(6) Absolute contraindication to iodinated contrast due to prior near-fatal anaphylactoid reaction (laryngospasm, bronchospasm, cardiorespiratory collapse, or equivalent) |
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(7) Impaired chronic renal function (serum creatinine ≥1.7 mg/dl or Glomerular Filtration Rate <30 ml/min) |
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(8) Baseline irregular heart rhythm (e.g., atrial fibrillation, etc.) |
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(9) Heart rate ≥100 beats per minute |
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(10) Systolic blood pressure ≤90 mm Hg |
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(11) Contraindications to β blockers or nitroglycerin or adenosine |
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