Methods Digital subtraction angiography(DSA)were performed in 41 patients with clustering TIA in the carotid artery supplying territory and in 25 patients with oculomotor nerve palsy as control.

• 方法采用数字减影血管造影(DSA)对41例频发TIA患者(TIA组)及25例单纯动眼神经麻痹患者(对照组)进行检查。