Ch 12 - Ultrasound Flashcards

1
Q

What is Echogenicity?

A

Ability of a structure to reflect sound waves and produce echoes

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2
Q

Describe Hyperechoic.

A

Structure highly reflects sound and is brighter than the surrounding tissues (white)

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3
Q

Describe Hyoechoic.

A

Structure shows a low sound reflective pattern and is darker than surrounding tissues (dark grey)

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4
Q

Describe Isoechoic.

A

Structure has the same echogenicity as the surrounding tissues (light grey)

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5
Q

Describe Anoechoic.

A

No sound reflection (black)

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6
Q

What are four main tissue types to image in the body?

A

Bone
Fluid
Tissue
Gas

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7
Q

What is Anisotropy?

A

Tendon will typically appear hyperechoic when the beam of the transducer is perpendicular to the tendon. If the beam is angled obliquely, the tendon can appear hypoechoic.

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