Question

The produced rays in sonography are:

• A. microwaves
• B. infrared waves
• C. sound waves
• D. ultra sound

Answer 1

Answer: (D)

ultra sound

Ultrasound is safe and painless, and produces pictures of internal part of the body using sound waves. Ultrasound imaging, also called ultrasound scanning or sonography, involves the use of a small transducer (probe) and ultrasound gel placed directly on the skin. High-frequency sound waves are transmitted from the probe through the gel into the body. The transducer collects the sounds that bounce back and a computer then uses those sound waves to create an image. Ultrasound examinations do not use ionizing radiation (as used in x-rays), thus there is no radiation exposure to the patient.