Knobology/Sonographic Terminology

Question 1

Echogenicity

Answer 1

A body structure capable of producing ultrasound echoes in degrees of brightness or shades of grey

Question 2

Hyperechoic AKA

Answer 2

Echogenic

Question 3

Hypoechoic AKA

Answer 3

Echopenic

Question 4

Echogenic AKA

Answer 4

Hyperechoic

Question 5

Echopenic AKA

Answer 5

Hypoechoic

Question 6

Isoechoic def

Answer 6

Echoes that have the same relative echo density to surrounding tissue or adjacent structures

Question 7

Anechoic def

Answer 7

Body structure that has an echo free appearance

Question 8

Why might something be anechoic

Answer 8

sound waves pass through as density is not enough to stop the beam

Question 9

Homogeneous

Answer 9

Refers to an even echo pattern that is uniform in composition (smooth texture)

Question 10

Heterogeneous

Answer 10

Refers to an uneven echo pattern or reflection or varying echodensities (rough/course texture)

Question 11

Attenuation

Answer 11

When a body structure absorbs the sound waves (all or some)

A loss of energy of a sound wave as it moves through a body structure

Question 12

Posterior shadowing

Answer 12

A bald area post to a body structure that could not be penetrated by the ultrasound beam (bone)

Question 13

Through transmission

Answer 13

Appears as an area of brightness post to a structure that has no attenuation (ex passing through fluid filled structure created brighter echoes posterior to it)

Question 14

Through transmission AKA

Answer 14

Acoustic/posterior enhancement

Question 15

Interface

Answer 15

Two adjacent structures with different absorptions of the ultrasound beam

In ultrasound, used to compare echogenicities to analyze if they are normal