Recent advances in myocardial contrast echocardiography.

In the past few years, significant advances have been made in the production of microbubbles that are more stable in the circulation. Our understanding of the interactions between microbubbles and ultrasound has also led to the development of new ultrasound imaging techniques that result in excellent myocardial opacification after an intravenous administration of microbubbles. This review focuses on advances made with these technologies in the setting of acute coronary syndromes and chronic coronary artery disease.