Clinic study of strain rate and dobutamine stress echocardiography in the diagnosis of coronary heart disease / 中华超声影像学杂志
Chinese Journal of Ultrasonography
; (12)1993.
Article
em Zh
| WPRIM
| ID: wpr-543001
Biblioteca responsável:
WPRO
ABSTRACT
Objective To explore the value of strain rate and dobutamine stress echocardiography(DSE) in the diagnosis of coronary heart disease. Methods High-dose DSE was performed in 18 patients with coronary heart disease and 10 healthy persons, proved by selected coronary angiography. Ten patients had single coronary lesion, and the other 8 patients had more. By strain rate technology, systolic peak strain rate(SR_ SYS ) was measured in 12 segments of healthy persons and ischemic segments of patients. Results SR_ SYS of healthy subjects enhanced by the increasement of dose of DSE. In patients with single coronary lesion, SR_ SYS enhanced on the first states of baseline, 10 and 20 ?g?kg -1 ?min -1 ,while SR_ SYS changed non-significantly on 30 ?g?kg -1 ?min -1 , and began to decrease on 40 ?g?kg -1 ?min -1 . However in patients with more than one coronary lesions, SR_ SYS of 10 ?g?kg -1 ?min -1 became larger than that of baseline, while SR_ SYS didn't increase any longer on 20 ?g?kg -1 ?min -1 , and fell significantly on 40 ?g?kg -1 ?min -1 . Conclusions Combining stain rate and DSE to quantify local myocardial motion is valuable to offer many important clinic messages, and improves the diagnosis of coronary heart disease.
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Índice:
WPRIM
Tipo de estudo:
Diagnostic_studies
Idioma:
Zh
Revista:
Chinese Journal of Ultrasonography
Ano de publicação:
1993
Tipo de documento:
Article