Myocardial biopsy findings and gadolinium enhanced cardiovascular magnetic resonance in dilated cardiomyopathy.
Eur J Heart Fail
; 8(2): 162-6, 2006 Mar.
Article
em En
| MEDLINE
| ID: mdl-16111918
ABSTRACT
BACKGROUND:
In some patients suffering from dilated cardiomyopathy (DCM) magnetic resonance imaging (MRI) shows late gadolinium enhancement with variable distribution. Myocardial biopsies in DCM reveal a chronic myocardial inflammatory process in almost 50% and myocardial persistence of adenoviral or enteroviral genome in about 15% of the patients.AIMS:
We prospectively investigated whether the pattern of late gadolinium enhancement correlates with myocardial biopsy findings. METHODS ANDRESULTS:
42 patients with DCM and 42 control subjects underwent contrast MRI. In the DCM group, endomyocardial biopsies were performed and evaluated for inflammation and viral genome. None of the control subjects showed late gadolinium enhancement whereas in 29 DCM patients (69%) gadolinium enhancement was detectable (p<0.001). 21 of the DCM patients (50%) showed midwall septal enhancement, 7 patients (17%) showed a patchy distribution of hyperenhancement and 1 patient (2%) showed enhancement typical for ischemic heart disease. In myocardial biopsy analysis, 2 patients (5%) showed persistence of viral genome, 18 patients (43%) showed inflammation and in 22 patients (52%) neither virus nor inflammation was detected. The pattern of late gadolinium enhancement and myocardial biopsy findings were not significantly correlated (p = 0.854).CONCLUSION:
MRI as a non-invasive technique cannot replace myocardial biopsy for the differential diagnosis of DCM.
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Base de dados:
MEDLINE
Assunto principal:
Cardiomiopatia Dilatada
/
Gadolínio
/
Miocárdio
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article