Objective To study on the role of digital subtraction angiography (DSA) in evaluation of the therapeutic efficacy of radiofrequency ablation( RFA) in treatment of the liver malignant tumors.

• 目的探讨数字减影血管造影(DSA)在射频切除(radiofrequency ablation,RFA)肝脏恶性肿瘤中的作用。