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Sonography Principles and Instrumentation

Last Update 3 days ago
Total Questions : 187

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Question # 1

Which adjustment will reduce the appearance of posterior shadowing artifact?

Options:

A.  

Increasing spatial compounding

B.  

Decreasing dynamic range

C.  

Decreasing the number of focal zones

D.  

Increasing persistence

Discussion 0
Question # 2

What is the term for an ultrasound system's ability to display low-level echoes?

Options:

A.  

Slice thickness

B.  

Axial resolution

C.  

Sensitivity

D.  

Lateral resolution

Discussion 0
Question # 3

Which color Doppler control allows for reassignment of red and blue to represent flow direction?

Options:

A.  

Color priority

B.  

Color gain

C.  

Color threshold

D.  

Color invert

Discussion 0
Question # 4

Which target group in this image of a tissue-mimicking phantom is used for gray-scale evaluation?

Question # 4

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 5

What is the effect of increasing the sample volume on the spectral Doppler signal tracing?

Options:

A.  

Decreased sweep speed

B.  

Increased noise

C.  

Increased velocity sensitivity

D.  

Decreased aliasing

Discussion 0
Question # 6

What is a potential negative consequence of using a high wall filter?

Options:

A.  

Desired signal may be eliminated

B.  

Aliasing could occur

C.  

Penetration is reduced

D.  

Too much noise may appear on the image

Discussion 0
Question # 7

What is the effect of an increased aperture in a linear array transducer?

Options:

A.  

Deeper focus

B.  

Improved axial resolution

C.  

Shorter near-field length

D.  

Decreased temporal resolution

Discussion 0
Question # 8

For harmonic imaging, what must the overall transducer bandwidth contain?

Options:

A.  

Fundamental and second harmonic frequencies

B.  

Fundamental and fourth harmonic frequencies

C.  

Fundamental and even harmonic frequencies

D.  

Fundamental and odd harmonic frequencies

Discussion 0
Question # 9

What information does the ultrasound system calculate to display color flow?

Options:

A.  

Peak Doppler frequency

B.  

Mean Doppler frequency

C.  

Peak velocity of flow

D.  

Minimum velocity of flow

Discussion 0
Question # 10

Which transducer was most likely used to create this image?

Question # 10

Options:

A.  

Curvilinear

B.  

Endocavity

C.  

Phased array

D.  

Linear array

Discussion 0
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