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Titolo:
Combined MR imaging and CFD simulation of flow in the human descending aorta
Autore:
Wood, NB; Weston, SJ; Kilner, PJ; Gosman, AD; Firmin, DN;
Indirizzi:
Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2BX, England Univ London Imperial Coll Sci Technol & Med London England SW72BX gland
Titolo Testata:
JOURNAL OF MAGNETIC RESONANCE IMAGING
fascicolo: 5, volume: 13, anno: 2001,
pagine: 699 - 713
SICI:
1053-1807(200105)13:5<699:CMIACS>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
WALL SHEAR-STRESS; ELASTIC ARTERY MODEL; BLOOD-FLOW; MAGNETIC-RESONANCE; PULSATILE FLOW; VELOCITY; BIFURCATION; PATTERNS; QUANTITATION; COMPUTATION;
Keywords:
MRI; phase imaging; computational fluid dynamics; comparative studies; blood vessels; flow; evaluation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Wood, NB Royal Brompton Hosp, Magnet Resonance Unit, Sydney St, London SW36NP, England Royal Brompton Hosp Sydney St London England SW3 6NP NP, England
Citazione:
N.B. Wood et al., "Combined MR imaging and CFD simulation of flow in the human descending aorta", J MAGN R I, 13(5), 2001, pp. 699-713

Abstract

A combined MR and computational fluid dynamics (CFD) study is made of flowin the upper descending thoracic aorta. The aim was to investigate furtherthe potential of CFD simulations linked to in vivo MRI scans. The three-dimensional (3D) geometrical Images of the aorta and the 3D time-resolved velocity images at the entry to the domain studied were used as boundary conditions or the CFD simulations of the flow. Despite some measurement uncertainties, comparisons between simulated and measured flow structures at the exit from the domain demonstrated encouraging levels of agreement. Moreover, the CFD simulation allowed the flow structure throughout the domain to be examined in more detail, in particular the flow separation region in the distal aortic arch and its influence on the downstream flow during late systole. Additional information such as relative pressure and wall shear stress, which could not be measure via MRI, were also extracted from the simulation. The results have encouraged further applications of the methods described. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 21:52:52