to evaluate the relative long-term improvement in coronary artery hemodynamics after revascularization by coronary artery bypass graft surgery ( cabg ) or percutaneous transluminal coronary angioplasty ( ptca ) , regional coronary flow reserve ( cfr ) was measured , by digital computer analysis of 35 mm cine film , in 50 men undergoing cardiac catheterization .
C0205042
coronary artery
C2936173
percutaneous transluminal coronary angioplasty