echogenicity

What is echogenicity?

Echogenicity is the descriptor of how bright or dark a tissue is on a US image, which depends on whether ultrasound waves are reflected, refracted, attenuated, or transmitted by the tissue. Hyperechoic or echogenic tissues (including air and bone) appear bright, hypoechoic tissues appear dark gray, and anechoic tissues (such as fluid) appear black.

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