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Status: Bibliographieeintrag

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Verfasst von:Karmonik, Christof [VerfasserIn]   i
 Müller-Eschner, Matthias [VerfasserIn]   i
 Partovi, Sasan [VerfasserIn]   i
 Geisbüsch, Philipp [VerfasserIn]   i
 Ganten, Maria-Katharina [VerfasserIn]   i
 Bismuth, Jean [VerfasserIn]   i
 Davies, Mark G. [VerfasserIn]   i
 Böckler, Dittmar [VerfasserIn]   i
 Loebe, Matthias [VerfasserIn]   i
 Lumsden, Alan B. [VerfasserIn]   i
 Tengg-Kobligk, Hendrik von [VerfasserIn]   i
Titel:Computational fluid dynamics investigation of chronic aortic dissection hemodynamics versus normal aorta
Verf.angabe:Christof Karmonik, PhD, Matthias Müller-Eschner, MD, Sasan Partovi, MD, Philipp Geisbüsch, MD, Maria-Katharina Ganten, MD, Jean Bismuth, MD, Mark G. Davies, MD, PhD, MBA, Dittmar Böckler, MD, Matthias Loebe, MD, PhD, Alan B. Lumsden, MD, Hendrik von Tengg-Kobligk, MD
E-Jahr:2013
Jahr:September 17, 2013
Umfang:7 S.
Fussnoten:Gesehen am 15.04.2021
Titel Quelle:Enthalten in: Vascular and endovascular surgery
Ort Quelle:Thousand Oaks, Calif. : Sage, 2002
Jahr Quelle:2013
Band/Heft Quelle:47(2013), 8, Seite 625-631
ISSN Quelle:1938-9116
Abstract:Objectives:To evaluate hemodynamic changes during aneurysmal dilatation in chronic type B aortic dissections compared to hemodynamic parameters in the healthy aorta with the use of computational fluid dynamics (CFD).Methods:True lumen (TL)/false lumen (FL) dimensional changes, changes in total pressure (TP), and wall shear stress (WSS) were evaluated at follow-up (FU) compared to initial examination (IE) with transient CFD simulation with geometries derived from clinical image data and inflow boundary conditions from magnetic resonance images. The TL/FL pressure gradient between ascending and descending aorta (DAo) and maximum WSS at the site of largest dilatation was compared to values for the healthy aorta.Results:Hemodynamic changes at site of largest FL dilatation included 77% WSS reduction and 69% TP reduction. Compared to the healthy aorta, pressure gradient between ascending and DAo was a factor of 1.4 higher in the TL and a factor of 1.5 in the FL and increased at FU (1.6 and 1.7, respectively). Maximum WSS at the site of largest dilatation was a factor of 3 lower than that for the healthy aorta at IE and decreased by more than a factor of 2 at FU.Conclusions:The FL dilatation at FU favorably reduced TP. In contrast, unfavorable increase in pressure gradient between ascending and DAo was observed with higher values than in the healthy aorta. Maximum WSS was reduced at the site of largest dilation compared to healthy aorta.
DOI:doi:10.1177/1538574413503561
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1177/1538574413503561
 DOI: https://doi.org/10.1177/1538574413503561
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:aortic dissection
 computational fluid dynamics
 hemodynamics
 magnetic resonance imaging
K10plus-PPN:1755013574
Verknüpfungen:→ Zeitschrift

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