Often used to examine parts of the body including heart and liver?

Echocardiogram

An echocardiogram, also known as an echo, is a non-invasive medical test that uses sound waves to produce real-time images of the heart. It is commonly used to evaluate the heart's structure, function, and blood flow. Physicians can assess the heart's chambers, valves, and surrounding tissues, as well as detect any abnormalities or heart defects.