Cardiac MRI in pulmonary artery hypertension: correlations between morphological and functional parameters and invasive measurements.
Eur Radiol
; 20(5): 1149-59, 2010 May.
Article
em En
| MEDLINE
| ID: mdl-20094890
ABSTRACT
OBJECTIVE:
To compare cardiac MRI with right heart catheterisation in patients with pulmonary hypertension (PH) and to evaluate its ability to assess PH severity. MATERIALS ANDMETHODS:
Forty patients were included. MRI included cine and phase-contrast sequences, study of ventricular function, cardiac cavity areas and ratios, position of the interventricular septum (IVS) in systole and diastole, and flow measurements. We defined four groups according to the severity of PH and three groups according to IVS position A, normal position; B, abnormal in diastole; C, abnormal in diastole and systole.RESULTS:
IVS position was correlated with pulmonary artery pressures and PVR (pulmonary vascular resistance). Median pulmonary artery pressures and resistance were significantly higher in patients with an abnormal septal position compared with those with a normal position. Correlations were good between the right ventricular ejection fraction and PVR, right ventricular end-systolic volume and PAP, percentage of right ventricular area change and PVR, and diastolic and systolic ventricular area ratio and PVR. These parameters were significantly associated with PH severity.CONCLUSION:
Cardiac MRI can help to assess the severity of PH.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artéria Pulmonar
/
Imagem Cinética por Ressonância Magnética
/
Cardiopatias
/
Hipertensão Pulmonar
Tipo de estudo:
Prognostic_studies
Limite:
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Eur Radiol
Assunto da revista:
RADIOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
França