Heart sounds are one tool providers use to assess heart health. Learn about systolic, diastolic, and S1 to S4 heart sounds in ...

An echo test involves ultrasound-- high-frequency sound waves -- to evaluate the function of heart muscle and valves, the same technology used to ensure a developing baby is healthy. In a cardiac ...

The injection of agitated saline solution produces echo contrast by the creation of ... the pulmonary microcirculation and opacify the left heart. “New” Echocardiographic Contrast Agents ...