Question 1

Which outcome is an advantage of more pulses in an ensemble length?

Options :

A : Reduced ghosting artifact

B : Increased accuracy of velocity measurement

C : Improved temporal resolution

D : Increased line density

Answer: B

Question 2

What is the relationship between overall gain and image brightness?

Options :

A : The higher the overall gain, the brighter the image

B : The lower the overall gain, the brighter the image

C : The higher the overall gain, the darker the image

D : There is no relationship between overall gain and image brightness

Answer: A

Question 3

Which control should a sonographer use to change contrast resolution?

Options :

A : Reject

B : Output power

C : Gain

D : Dynamic range

Answer: D

Question 4

During 3-D volume acquisition, the quality of the images is most dependent upon which factor?

Options :

A : Number of slices acquired

B : Power output

C : Rendering method utilized

D : Speed of post-processing image compression

Answer: A

Question 5

What occurs when the pulse repetition frequency is less than twice the Doppler shift frequency?

Options :

A : Spectral broadening

B : Range ambiguity

C : Aliasing

D : Propagation speed artifact

Answer: C

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