Ultrasound definition

    First, it is important to understand the definition of sound. Let's see two definitions of sound:

Simple definition

    Sound is the perception of vibrations stimulating the ear. Sound is a periodic disturbance in fluids density, or in the elastic strain of a solid, generated by a vibrating object. These waves (vibrations) propagate in two basic ways: longitudinal waves and transverse waves. Ultrasound is sound with a frequency over 20,000 Hz, which is about the upper limit of human hearing.Therefore, human beings cannot hear ultrasound

Ultrasound & Imaging

    This sound energy is useful for diagnostic imaging of anatomical structures and blood flow measurements. For imaging, pulse - echo techniques provide an acoustic map of tissues based on the mechanical interaction of short pulses of the high-frequency sound waves and the reflections that occurs between different tissues in the patient. Blood velocity measurements are posibble by analyzing the changes in frequency of the carrier ultrasound wave as it interacts with moving blood cells.

Where is Ultrasound applied?

                   Ultrasound is used to assess many areas of the body. Advances in technology continue to expand the areas of use for ultrasound. It is used
                   as a diagnostic tool in the following areas:

• Gynecology
• Vascular System
• Ophthalmology
• Obstetrics
• Brain (Neurosonography)
• Veterinary Practice
• Abdomen
• Male Reproductive System
• Musculoskeletal
• Pediatrics
• Cardiology

 

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