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Titolo:
Noninvasive assessment of pulmonary arterial hypertension by MR phase-mapping method
Autore:
Laffon, E; Laurent, FO; Bernard, V; De Boucaud, L; Ducassou, D; Marthan, R;
Indirizzi:
Hop Haut Leveque, Nucl Med Serv, F-33604 Pessac, France Hop Haut Leveque Pessac France F-33604 Med Serv, F-33604 Pessac, France Hop Haut Leveque, Serv Radiol, F-33604 Pessac, France Hop Haut Leveque Pessac France F-33604 rv Radiol, F-33604 Pessac, France Hop Haut Leveque, Serv Cardiol, F-33604 Pessac, France Hop Haut Leveque Pessac France F-33604 v Cardiol, F-33604 Pessac, France Univ Bordeaux 2, INSERM, Lab Physiol Cellulaire Resp, F-33076 Bordeaux, France Univ Bordeaux 2 Bordeaux France F-33076 e Resp, F-33076 Bordeaux, France
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 6, volume: 90, anno: 2001,
pagine: 2197 - 2202
SICI:
8750-7587(200106)90:6<2197:NAOPAH>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOW QUANTIFICATION; MAGNETIC-RESONANCE;
Keywords:
magnetic resonance imaging; pressure wave velocity; pulmonary circulation; pulmonary hemodynamics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Laffon, E Hop Haut Leveque, Nucl Med Serv, F-33604 Pessac, France Hop HautLeveque Pessac France F-33604 F-33604 Pessac, France
Citazione:
E. Laffon et al., "Noninvasive assessment of pulmonary arterial hypertension by MR phase-mapping method", J APP PHYSL, 90(6), 2001, pp. 2197-2202

Abstract

We describe a magnetic resonance (MR) imaging method that emphasizes pressure wave velocity to noninvasively assess pulmonary arterial hypertension. Both the blood flow and the corresponding vessel cross-sectional area (CSA)were measured by MR phase mapping in the main pulmonary artery (MPA) in 15patients. MPA pressures were also measured, in the same patients, by right-side heart catheterization. Two significant relationships were established: 1) between the pressure wave velocity in the MPA and the mean pressure inthe MPA (Ppa) writing pressure wave velocity = 9.25 Ppa - 202.51 (r = 0.82) and 2) between the ratio of pressure wave velocity to the systolic blood velocity peak in the MPA (R) and the mean pressure in the MPA writing R = 0.68 Ppa - 4.33 (r = 0.89). Using these relationships, we estimated two pressure values to frame the actual Ppa value in each patient from the present series with a reasonable reliability percentage (87%).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 06:54:32