[The value of contrast in stress echocardiography].
Stress echocardiography is a well validated method of diagnosing myocardial ischaemia and viability. Its limitations are also well known, related to a subjective interpretation and lack of reproducibility. One of the solutions suggested to improve its diagnostic performance is the use of ultrasonic contrast agents which presents many advantages. In difficult patients, the left ventricular chamber may be opacified, both at rest and at peak effort with a significant improvement in the detection of the endocardial contour and in the reproducibility of the interpretation of the images. The diagnostic performance of stress echocardiography with contrast is less dependent on the conditions of observation. In addition, recent technical advances enable the same ultrasonic contrast agents to be used for the study of myocardial perfusion. The first clinical studies using these techniques report the feasibility of simultaneous analysis of wall motion abnormalities and myocardial perfusion on exercise. Further progress is expected to facilitate the interpretation and quantification of these investigations which should further increase the diagnostic value of stress echocardiography.
Département de cardiologie, hôpital Bichat, Paris.
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Brochet
D003287:Contrast Media / Q000008:administration & dosage*; D025401:Echocardiography, Stress / Q000379:methods*; D006801:Humans; D017202:Myocardial Ischemia / Q000175:diagnosis*; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis
D003287:Contrast Media