Figure 1. Trial flowchart. * = One patient in the DSA group did not undergo any diagnostic or therapeutic intervention, and no data of any kind were available for this patient (he did not respond to the questionnaires); therefore, all data for this patient were missing. 
= Seven patients in the DSA group and eight patients in the multi–detector row CT angiography (MDCTA) group underwent both percutaneous intervention and a surgical procedure. DUS = Doppler US.