The beneficial vortex and best spatial arrangement in total extracardiac cavopulmonary connection Antonio Amodeo, MDb, Mauro Grigioni, MSc, Guido Oppido,

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Presentation transcript:

The beneficial vortex and best spatial arrangement in total extracardiac cavopulmonary connection Antonio Amodeo, MDb, Mauro Grigioni, MSc, Guido Oppido, MDb, Carla Daniele, MSc, Giuseppe D'Avenio, MSc, Giovanni Pedrizzetti, PhDd, Salvatore Giannico, MDa, Sergio Filippelli, MDb, Roberto M. Di Donato, MDb The Journal of Thoracic and Cardiovascular Surgery Volume 124, Issue 3, Pages 471-478 (September 2002) DOI: 10.1067/mtc.2002.120349 Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 1 Flow visualization of type 1 phantom. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 2 Velocity field relative to type 1 phantom, generated by PIV analysis, 40:60 SVC/IVC ratio. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 3 Numeric simulation of flow field in type 1 phantom corresponding to experimental case: Re 700, IVC 60% of total venous return, SVC 40%, equal pulmonary arterial flows. a, Streamlines. b, Vorticity fields contours, level from zero (dotted lines) with steps at ±0.5. Gray lines represent positive levels; black lines represent negative levels. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 4 Flow visualization of type 1 phantom. LPA is stenosed, with RPA carrying 70% of pulmonary flow. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 5 Flow visualization of type 2 phantom. Collision of converging caval flows generates circular swirling patterns. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 6 Power dissipation (see Equation 1) for both TECPC phantom circulations. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Appendix Fig. 1. Pair of typical particle images analyzed with PIV technique. Interval (Δt) between image recordings must be chosen to minimize loss of particles in second image while achieving appreciable displacement between images because of local velocity. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Appendix Fig. 2. Cross-correlation function of intensity of images shown in Appendix Figure 1. Highest peak reveals average displacement(s) of the particles during interval (Δt). The Journal of Thoracic and Cardiovascular Surgery 2002 124, 471-478DOI: (10.1067/mtc.2002.120349) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions