1. Size of internal jugular vs subclavian vein in small infants: an observational, anatomical evaluation with ultrasound 
C Breschan, M Platzer, R Jost, H Stettner, R Likar 
British Journal of Anaesthesia 
Volume 105, Issue 2, Pages (August 2010)
DOI: /bja/aeq123
Copyright © 2010 The Author(s) Terms and Conditions

2. Fig 1
Cross-sectional view of the right IJV in a 3.2 kg infant. Ultrasound probe placed transversely to the neck. Inset: CL, clavicle. Ultrasound image: IVJ, internal jugular vein; CA, carotid artery; SCM, sternocleidomastoid muscle. Dotted line: A–A, anterior–posterior diameter of IJV via SAX view. Ellipse: B–B, medial–lateral distance of the ellipse; A, area (CSA) within the ellipse; C, circumference of the ellipse. Dotted line: C–C, depth of IJV from the skin surface.
British Journal of Anaesthesia  , DOI: ( /bja/aeq123)
Copyright © 2010 The Author(s) Terms and Conditions

3. Fig 2
Cross-sectional view of the right SCV in a 4 kg infant. Sagittal ultrasound probe placed below the clavicle. Inset: CL, clavicle. Ultrasound image: SCV, subclavian vein; SCA, subclavian artery; PL, pleura; PM, pectoral muscles. Ellipse: A–A, cranial–caudal distance of the ellipse; A, area within the ellipse; C, circumference of the ellipse. Dotted line: B–B, anterior–posterior diameter of SCV via SAX view.
British Journal of Anaesthesia  , DOI: ( /bja/aeq123)
Copyright © 2010 The Author(s) Terms and Conditions

4. Fig 3
Significant positive correlation between weight and CSA of right IJV (Spearman’s rank correlation coefficient; rS=0.73). Equation of regression line: CSA=− ×weight. Number of patients: n=51.
British Journal of Anaesthesia  , DOI: ( /bja/aeq123)
Copyright © 2010 The Author(s) Terms and Conditions

5. Fig 4
Significant positive correlation between weight and CSA of left SCV (Spearman’s rank correlation coefficient; rS=0.56). Equation of regression line: CSA= ×weight. Number of patients: n=51.
British Journal of Anaesthesia  , DOI: ( /bja/aeq123)
Copyright © 2010 The Author(s) Terms and Conditions