Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Radiol. Jun 28, 2012; 4(6): 273-277
Published online Jun 28, 2012. doi: 10.4329/wjr.v4.i6.273
Figure 4
Figure 4 Vascular needle with a rough-filed surface at 3-6 mm from the tip of the needle. A: Needle tip, shaft; B: Corresponding ultrasound image, with the rough surface indicated by the arrow.