Question 1

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 2

Which change can be made in order to avoid exceeding the Nyquist limit?

Options :

A : Increase output power

B : Decrease output power

C : Increase pulse repetition frequency

D : Decrease pulse repetition frequency

Answer: C

Question 3

According to Poiseuille's law, a change in which parameter would have the greatest influence on blood flow?

Options :

A : Pressure gradient

B : Length of vessel

C : Viscosity of the fluid

D : Vessel radius

Answer: D

Question 4

Which ultrasound adjustment allows for an increased frame rate in color flow Doppler?

Options :

A : Using continuous wave Doppler

B : Decreasing depth

C : Using multiple focal zones

D : Increasing sector scan width

Answer: B

Question 5

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