Echography
Echography
Echography (pronounced: eh-KOG-rah-fee) is a diagnostic imaging technique used in medicine to visualize internal structures of the body. It is also known as Ultrasound imaging or sonography.
Etymology
The term "Echography" is derived from the Greek words "ēchos" meaning "sound" and "graphō" meaning "to write". It refers to the process of creating an image using sound waves.
Procedure
Echography involves the use of high-frequency sound waves that are transmitted into the body via a transducer. The sound waves bounce off internal structures and return to the transducer, which then converts the waves into electrical signals. These signals are processed by a computer to produce an image of the internal structures.
Applications
Echography is used in various medical fields, including but not limited to:
- Obstetrics and Gynecology: To monitor the development of a fetus during pregnancy and to examine the female reproductive system.
- Cardiology: To visualize the heart and assess its function, a procedure known as an Echocardiogram.
- Radiology: To examine various organs and tissues in the body, such as the liver, kidneys, and blood vessels.
Related Terms
- Sonogram: An image produced by an ultrasound examination.
- Doppler Ultrasound: A special type of ultrasound that creates images of blood flow through vessels.
- Transducer: A device that converts one form of energy into another. In echography, it converts electrical energy into sound waves and vice versa.
External links
- Medical encyclopedia article on Echography
- Wikipedia's article - Echography
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