Inclusion Criteria:  Patients with at least one vessel with measurable post-PCI QFR PPG index can be calculated from virtual QFR pullback curve dQFR/ds can be calculated from virtual QFR pullback curve The patient is willing to comply with specified follow-up evaluations; Patients who agree to accept the follow-up visits.  Exclusion Criteria:  Culprit vessels for ACS myocardial infarction; Pregnant or nursing patients and those who plan pregnancy in the period up to 1 year following index procedure; Patient has other medical illness (e.g., cancer, known malignancy, congestive heart failure, organ transplant recipient or candidate) or known history of substance abuse (alcohol, cocaine, heroin etc.) that may cause non-compliance with the protocol, confound the data interpretation or is associated with a limited life expectancy (i.e., less than 1 year); Patient has a known hypersensitivity or contraindication to aspirin, heparin, clopidogrel/ticlopidine, stainless steel alloy, cobalt chromium, rapamycin, styrene-butylenes-styrene or poly-lactic acid (PLA) polymer, and/or contrast sensitivity that cannot be adequately pre-medicated; Any significant medical condition which in the Investigator's opinion may interfere with the patient's optimal participation in the study; Currently participating in another investigational drug or device study or patient in inclusion in another investigational drug or device study during follow-up.