12 to opacify the blood pool in order to delineate endocardial borders and allow more accurate assessment of left ventricular systolic function. 13 Two gas-filled microsphere ultrasound contrast ...

Administered intravenously, the microbubbles act as a contrast agent, enhancing the quality of the image ... The enhanced contrast means that in some cases ultrasound could be used instead ...

The injection of agitated saline solution produces echo contrast by the creation of multiple liquid-gas interfaces which enhances the blood pool ... enhanced) studies vs. those with optimal image ...