Fig 1.
SA, short-axis; SLA, combined short- and long-axis.
Fig 2.
The needle as visualized on ultrasonography.
A) The needle tip (arrow) is visualized as a dot between the skin and anterior wall of the target vein in the short-axis view. B) After rotating the transducer by 90°, the entire length of the needle (arrow) is observed in the long-axis view. C) The needle (arrow) is observed puncturing the anterior wall of the target vein.
Fig 3.
The guide-wire as visualized on ultrasonography.
The guide-wire (*) is observed in the long-axis view.
Table 1.