GLS 2D Echo Cardiography Echocardiography refers to Echo.2-dimension images of the heart are created in Echocardiography.An imaging procedure that examines the function of the different parts of the heart is known as 2D Echo.Through 2D Echo can assess the blockages, damages, blood flow rate, etc.When a disorder is related to the heart, doctors advise 2D Echo to check abnormalities in the heart.It takes only about 15–30 minutes to perform the same.It is a safe technique that does not harm the human body as no radiation is used in it.