In Invasive Coronary Angiography there are multiple invasively obtained measurements to determine the funcitonal significance of Cornary Artery Disease. In this Registry, patients who have undergone Invasive Coronary Angiography or Percutaneous Coronary Intervention are included to investigate diagnostic and prognostic implications of the invasive measurements.

Inclusion Criteria:

• 18 years
• Has undergone or will undergo a clinically indicated invasive coronary angiography.
• Has undergone or will undergo a clinically indicated percutaneous coronary intervention.

Exclusion Criteria:

• Not willing / unable to provide informed consent.

All patients that have undergone an invasive coronary angiography and or/percutaneous coronary intervention