coronary catheterization angiogramcoronary angiogram angioplastytraditional coronary angiogrampercutaneous coronary angiogramcoronary angiogram procedurecoronary angiogram preparationcoronary angiogram blockagecardiac angiogram coronaryradiopaedia coronary angiogramabnormal coronary angiogramcoronary angiogram resultscoronary angiogram surgery