Objective: Evaluation of radial morphology changes by 2D echo and color Doppler after transradial coronary angiography and angioplasty. Method: Prospective cohort study was performed at Interventional Cardiology Department Department, Cho Ray Hospital from 3/1/2008 to 31/12/2008.Results: Vascular complications at the puncture site after transradial approach were evaluated by 2D echo and color doppler in 156 patients before, early: 2.06 ± 1.538 (days), and late term: 87.473 ± 17.784 (days).