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Titolo:
Automatic accurate non-invasive quantitation of blood flow, cross-sectional vessel area, and wall shear stress by modelling of magnetic resonance velocity data
Autore:
Oyre, S; Paaske, WP; Ringgaard, S; Kozerke, S; Erlandsen, M; Boesiger, P; Pedersen, EM;
Indirizzi:
AarhusAarhusHosp, Skejby Sygehus, Dept Cardiothorac & Vasc Surg T, DK-8200Aarhus Univ Hosp Aarhus Denmark N pt Cardiothorac & Vasc Surg T, DK-8200
Titolo Testata:
EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
fascicolo: 6, volume: 16, anno: 1998,
pagine: 517 - 524
SICI:
1078-5884(199812)16:6<517:AANQOB>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN ABDOMINAL-AORTA; CAROTID-ARTERY; IN-VIVO; ATHEROSCLEROSIS; QUANTIFICATION; ASSOCIATION; PRECISION; PATTERNS;
Keywords:
blood flow; carotid artery; haemodynamics; magnetic resonance imaging; wall shear stress;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Oyre, S AarhusAarhusHosp, Skejby Sygehus, Dept Cardiothorac & Vasc Surg T,DK-8200 Aarhus Univ Hosp Aarhus Denmark N othorac & Vasc Surg T, DK-8200
Citazione:
S. Oyre et al., "Automatic accurate non-invasive quantitation of blood flow, cross-sectional vessel area, and wall shear stress by modelling of magnetic resonance velocity data", EUR J VAS E, 16(6), 1998, pp. 517-524

Abstract

Objectives: to apply a new, automatic and non-invasive method for quantification of blood flow, dynamic mass-sectional vessel area, and wall shear stress (WSS) by in vivo magnetic resonance velocity mapping of normal subjects. Design: prospective, open study. Materials: six young volunteers. Methods: a three-dimensional paraboloid model enabling automatic determination of bloodflow, vessel distensibility and WSS was applied to blood velocity determinations in the common carotid artery. Blood flow was also determined by a manual edge detection method. Results: using the new method, the common carotid mean blood flow was 7.28(5.61-9.63) (mean (range)) ml/s. By;the manual method blood flow was 7.21 (5.55-9.60) ml/s. Mean luminal vessel area was 26% larger in peak systole than in diastole. Mean/peak WSS was 0.82/2.28 N/m(2). Manually and automatically determined flows correlated (r(2) = 0.998, p < 0.0001). WSS and peak centre velocity were associated (r(2) = 0.805, p < 0.0001). Conclusions: bloodflow, luminal vessel area dilatation, and WSS can be determined by the automatic three-dimensional paraboloid method. The hypothesis of association between peak centre velocity and WSS was not contradicted by the results of the present study.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 19:15:30