A minimally invasive catheterization of the external jugular vein in suckling piglets using ultrasound guidance
Fig 2
A. Photograph that shows the positioning of the ultrasound transducer on the marked line (expected passage of external jugular vein); B. Visualization of the 21G echogenic needle entering the venous lumen; ST = subcutaneous tissues (muscle); VL = venous lumen; N = echogenic needle.