Basic Knowledge about Cardiac Echography

Ultrasound imaging uses high-frequency (ultrasound) waves reflected from internal structures to produce moving images, and does not use x-rays. Cardiac echography is one of the most widely used methods for diagnosing heart diseases. Ultrasound is also used to diagnose diseases in other parts of the body.

Ultrasound is emitted by a probe (transducer) that can both emit and detect ultrasound. The ultrasound probe can be placed in different parts of the patient.

• Chest (transthoracic)

• Oesophagus (transesophageal)

• Cardiac Catheter (Intracardiac)

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The role and characteristics of cardiac echography examination:

Echocardiography can be used to detect whether the movement of the myocardium is normal, and how much blood is discharged each time the heartbeats. The handheld cardiac ultrasound can also detect abnormalities in the heart structure, such as heart valve defects, congenital defects and ventricular enlargement.

Cardiac echography is like abdominal ultrasound. There is no radiation, and a cardiac transducer is inexpensive and easy to operate. Most patients are willing to do this examination.

How to perform cardiac echography?

During the examination, the doctor applies the gel to the probe and transmits sound waves to the chest. The probe is connected to the computer, and the computer displays images on the monitor and stores the images digitally. By changing the position and angle of the probe, doctors can observe the heart and nearby main blood vessels from different angles, thereby obtaining accurate images of the structure and function of the heart. The patient needs to hold his breath for about 10 seconds to ensure a clear image.