X-rays are used by medical professionals to image various parts of the human body to aid diagnosis. Diagnostic X-rays are a controlled form of radiation which are able to pass through the body recording an image on a light-sensitive detector or computer screen.
Magnetic Resonance Imaging (MRI) is a painless scanning technique which uses magnetic fields and radio waves to create images of tissues, organs and other structures inside your body.
An ultrasound scan builds up a picture of part of the inside of the body using sound waves that cannot be detected by a human ear. A small, hand-held sensor is pressed carefully against the skin surface above the area to be viewed.
An echocardiogram is an ultrasound scan of the heart. It is sometimes just called an ‘echo’. Ultrasound uses high frequency sound waves to view internal structures of the body.