Fig. 2.
Procedural warfarin therapy was significantly more prevalent in the ultrasound-guided puncture group. Of the patients, 91 % in the ultrasound guidance group had an INR≥1.2 on the day of the procedure, and 14 % of patients in the non-ultrasound guidance group had an INR≥1.2 on the day of the procedure (p<0.01)