Similarity between the suprasystolic wideband external pulse wave and the first derivative of the intra-arterial pulse wave  R.A. Payne, D. Isnardi, P.J.D.

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Similarity between the suprasystolic wideband external pulse wave and the first derivative of the intra-arterial pulse wave  R.A. Payne, D. Isnardi, P.J.D. Andrews, S.R.J. Maxwell, D.J. Webb  British Journal of Anaesthesia  Volume 99, Issue 5, Pages 653-661 (November 2007) DOI: 10.1093/bja/aem258 Copyright © 2007 British Journal of Anaesthesia Terms and Conditions

Fig 1 (a) Average ARTS (solid) and WEPS (dotted) signals; y-axis divisions: 50 mm Hg s−1. (b) Average ARTA (solid) and WEPA (dotted) signals; y-axis divisions: 10 mm Hg. British Journal of Anaesthesia 2007 99, 653-661DOI: (10.1093/bja/aem258) Copyright © 2007 British Journal of Anaesthesia Terms and Conditions

Fig 2 Bland–Altman plots of WEP measures (difference and mean of actual WEP value and that derived from first derivative of arterial pressure). Dashed lines represent mean bias and 95% limits of agreement (± 1.96sd). British Journal of Anaesthesia 2007 99, 653-661DOI: (10.1093/bja/aem258) Copyright © 2007 British Journal of Anaesthesia Terms and Conditions

Fig 3 Bland–Altman plots of arterial pressure measures (difference and mean of arterial value derived by integrating WEP signal and actual measured value). Dashed lines represent mean bias and 95% limits of agreement (± 1.96sd). British Journal of Anaesthesia 2007 99, 653-661DOI: (10.1093/bja/aem258) Copyright © 2007 British Journal of Anaesthesia Terms and Conditions

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