Ultrasonic waves are mechanical fluctuations of high frequency. Their frequencies are in the treatment and diagnostic range between 1 MHz and 20 MHz. The diagnosis of ultrasound examination is based on the laws of reflection and scattering of ultrasonic waves on the boundary surfaces with different tissue structures. As a result, the size, shape and position of the organ can be presented.

Doppler ultrasound examination (also duplex sonography) and color Doppler ultrasound examination can display changes in the vessel walls, stenosis (level of constriction), and blood flow velocity.

Areas of use

It is hardly possible to name the area of the body, which cannot be imagined with the help of ultrasound examination. The first meeting with ultrasound waves takes place in the womb of the mother, where the unborn child is “supervised and observed”.

Some of the areas where ultrasound is used in the examination of children or adults include:

• Evaluation of processes in the abdominal cavity (e.g. kidney and gallstones, appendicitis)
• Control of the course of recovery after surgery, radiation and chemotherapy
• Swelling of soft tissues (for example, with enlarged lymph nodes, tumors or pus)
• Assessment of vessels (vascular disease, thrombosis)

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