Which procedure involves visualizing the heart's chambers using ultrasound technology?

Echocardiography is the procedure that utilizes ultrasound technology to visualize the heart's chambers, valves, and surrounding structures. This non-invasive imaging technique uses sound waves to create images of the heart in real time, allowing healthcare providers to assess the heart's function and structure effectively. By providing detailed images, echocardiography helps in diagnosing various heart conditions, monitoring heart disease progression, and evaluating the effectiveness of treatments.

In contrast, electrophysiology studies focus on the electrical activities of the heart and are used to diagnose arrhythmias rather than visualize heart anatomy. Cardiac catheterization involves the insertion of a thin tube into the heart via blood vessels for diagnostic purposes, often related to coronary artery disease, and while it may involve imaging techniques, it does not use ultrasound in the same context as echocardiography. Coronary angioplasty is a treatment procedure aimed at opening blocked coronary arteries and also does not involve ultrasound visualization of heart chambers. Thus, echocardiography is the specific technique designed for this purpose.