Echogenicity
Echogenicity
Echogenicity (pronounced: eh-ko-jen-iss-ity) refers to the ability of a tissue or substance to reflect ultrasound waves. The term is derived from the Greek words "echo" meaning sound, and "genic" meaning producing.
Description
In medical imaging, echogenicity is used to describe the brightness or darkness of structures seen on ultrasound images. Structures that reflect a lot of ultrasound waves are said to have high echogenicity and appear bright on the images, while structures that don't reflect many ultrasound waves have low echogenicity and appear dark.
Related Terms
- Hyperechoic: Refers to tissues or substances that reflect more ultrasound waves than the surrounding tissues, appearing brighter on the ultrasound image.
- Hypoechoic: Refers to tissues or substances that reflect fewer ultrasound waves than the surrounding tissues, appearing darker on the ultrasound image.
- Isoechoic: Refers to tissues or substances that reflect the same amount of ultrasound waves as the surrounding tissues, appearing the same brightness on the ultrasound image.
- Anechoic: Refers to tissues or substances that do not reflect any ultrasound waves, appearing completely dark on the ultrasound image.
See Also
External links
- Medical encyclopedia article on Echogenicity
- Wikipedia's article - Echogenicity
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