AtherectomyAngioplasty, Balloon, Laser-AssistedAtherectomy, CoronaryCoronary VesselsCoronary AngiographyLasersCoronary Artery DiseaseAngioplasty, Balloon, CoronaryCoronary CirculationCoronary DiseaseCoronary StenosisCoronary Artery BypassAngioplasty, LaserUltrasonography, InterventionalCoronary ThrombosisTreatment OutcomeRecurrenceCoronary RestenosisStentsCoronary VasospasmMyocardial InfarctionFollow-Up StudiesCoronary AneurysmCoronary OcclusionLasers, Solid-StatePercutaneous Coronary InterventionLaser CoagulationProspective StudiesAngina, UnstableTime FactorsAngioplasty, BalloonCalcinosisLaser Therapy, Low-LevelRisk FactorsConstriction, PathologicEmbolismVascular PatencyFemoral ArteryCineangiographyRetrospective Studies