Echocardiography has now reached its maturity and plays a key role in the clinical assessment of cardiac function. However, its ability to assess myocardial perfusion remains a clinical challenge. Myocardial contrast echocardiography is a technique that uses microbubbles. These microbubbles remain entirely within the intravascular space and their presence in any myocardial region denotes the status of microvascular perfusion within that...