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Non-Invasive Cardiac Output Determination by Two-Dimensional Independent Doppler During and After Cardiac Surgery  Karsten Knobloch, MD, Artur Lichtenberg,

Published byHelena Hensley Modified over 6 years ago

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Presentation on theme: "Non-Invasive Cardiac Output Determination by Two-Dimensional Independent Doppler During and After Cardiac Surgery  Karsten Knobloch, MD, Artur Lichtenberg,"— Presentation transcript:

1 Non-Invasive Cardiac Output Determination by Two-Dimensional Independent Doppler During and After Cardiac Surgery  Karsten Knobloch, MD, Artur Lichtenberg, MD, Michael Winterhalter, MD, Dagmar Rossner, MD, Max Pichlmaier, MD, Rob Phillips, MD  The Annals of Thoracic Surgery  Volume 80, Issue 4, Pages (October 2005) DOI: /j.athoracsur Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

2 Fig 1 Screenshot of USCOM system (USCOM, Sydney, Australia) demonstrating trend graph display of peak velocity (Vpk) and stacked measure cards displaying multiple hemodynamic parameters. The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

3 Fig 2 Determination of area under the curve using the USCOM touchpoint flow profiling system (USCOM, Sydney, Australia). The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

4 Fig 3 Bland-Altman plot of the difference between invasive (SG) and noninvasive (USCOM) measures demonstrating a mean difference between methods of −0.23 ± 1.01 L/min and a mean value of 5.04 ± 1.92 L/min. The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

5 Fig 4 Regression plot of paired measures by invasive (SG) and noninvasive (USCOM, Sydney, Australia) methods demonstrating a regression equation of SG = USCOM L/min; r = 0.870; R2 = The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

6 Fig 5 Bland-Altman comparison of the difference between the means demonstrating a mean difference between methods of −0.23 ± 1.01 L/min with a mean value of 5.04 ± 1.92 L/min. The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

7 Fig 6 Regression plot of paired measures demonstrating a regression equation of SG = USCOM L/min, with R2 = The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

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