1. Ultrasound assessment of gastric volume in severely obese individuals: a validation study 
R Kruisselbrink, C Arzola, T Jackson, A Okrainec, V Chan, A Perlas 
British Journal of Anaesthesia 
Volume 118, Issue 1, Pages (January 2017)
DOI: /bja/aew400
Copyright © 2017 The Author(s) Terms and Conditions

2. Fig 1
Concordance between the calculated volume and suctioned volume. The continuous green line represents perfect concordance. The dotted orange line represents the ‘best fit’ of the study data.
British Journal of Anaesthesia  , 77-82DOI: ( /bja/aew400)
Copyright © 2017 The Author(s) Terms and Conditions

3. Fig 2
Bland–Altman analysis demonstrating the agreement between the calculated volume (CV) and the suctioned volume (SV). The y-axis represents the difference between the two values (CV−SV) and the x-axis the mean between the two values (CV+SV/2). The continuous green line represents perfect agreement. The continuous pink line is the mean difference of the model. The outer dotted lines represent the upper and lower limits of 95% agreement.
British Journal of Anaesthesia  , 77-82DOI: ( /bja/aew400)
Copyright © 2017 The Author(s) Terms and Conditions