A Comparative Analysis between Ultrasound-Guided and Conventional Distal Transradial Access for Coronary Angiography and Intervention

Figure 6

(a) Angiography from the distal radial artery shows the total occlusion of the radial artery (arrow). (b) Guidewire advance into the brachial artery. (c) After an exchange to 0.014-inch guidewire, balloon dilatation is performed. (d) Angiography from the distal radial artery shows the patency of the radial artery after the procedure.