[Superiority of second harmonic imaging for echocardiographic measurement of lef ventricular volumes. Comparison with angiocardiography]. / Supériorité de l'imagerie de seconde harmonique pour les mesures échocardiographiques des volumes ventriculaires gauches. Comparaison à l'angiocardiographie.
Arch Mal Coeur Vaiss
; 92(7): 867-74, 1999 Jul.
Article
em Fr
| MEDLINE
| ID: mdl-10443307
ABSTRACT
Analysis of left ventricular volumes is a prognostic factor in cardiovascular disease. Echocardiography is a means of obtaining these parameters but is limited by poor reproducibility. Recently, a new echocardiographic technique, second harmonic imaging (SHI), developed through contrast agent methods, significantly improved the quality of imaging. The aim of this study was to demonstrate the value of SHI for assessing left ventricular volumes. Thirty patients admitted for cardiovascular evaluation and requiring angiocardiography underwent echocardiography with calculation of end diastolic (EDV) and end systolic volumes (ESV) of the left ventricle in fundamental (FI) and second harmonic (SHI) imaging. These measurements were compared with those of angiocardiography. The reproducibility of SHI was calculated after repetition of the measurements by two independent observers for both echocardiographic modes. There was a significant improvement of the parameters of linear regression in SHI compared with FI both for EDV (r = 0.93 versus 0.76) and for ESV (r = 0.94 versus 0.83), the reproducibility was also significantly improved in SHI (relative error of 5% versus 12% for intra-observer error and 6% versus 13% for inter-observer error). The authors conclude that SHI significantly improves two-dimensional imaging and provides a reliable and reproducible measurement of left ventricular volumes.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ecocardiografia
/
Função Ventricular Esquerda
/
Angiografia Coronária
Tipo de estudo:
Clinical_trials
/
Prognostic_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Fr
Revista:
Arch Mal Coeur Vaiss
Ano de publicação:
1999
Tipo de documento:
Article