Fig. 2From: Comparison of ultrasound-guided internal jugular vein and supraclavicular subclavian vein catheterization in critically ill patients: a prospective, randomized clinical trialUltrasound-guided subclavian vein catheterization using the long-axis view of the vein via the supraclavicular approach in combination with in-plane needle approach. a Ultrasound short-axis view of IJV. b Ultrasound identification of IJV and SCA in the supraclavicular fossa. c Ultrasound long-axis view of SCV and BCV. d Ultrasound visualization of the guidewire in the SCV. SCV subclavian vein, SCA subclavian artery, BCV brachiocephalic vein, ITA internal thoracic artery, Asterisk acoustic shadow of the 1st ribBack to article page