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Sonography Principles and Instrumentation

Last Update 2 days ago
Total Questions : 187

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Question # 51

Which component of a transducer lowers the acoustic impedance mismatch between the transducer and the patient?

Options:

A.  

Lens

B.  

Backing Material

C.  

Piezoelectric Material

D.  

Matching Layer

Discussion 0
Question # 52

At which angle to blood flow would the maximum Doppler shift occur?

Options:

A.  

90 degrees

B.  

60 degrees

C.  

30 degrees

D.  

0 degrees

Discussion 0
Question # 53

Which control determines the amount of amplification occurring in the receiver?

Options:

A.  

Output power

B.  

Overall gain

C.  

Dynamic range

D.  

Persistence

Discussion 0
Question # 54

Which factor influences color flow imaging frame rate?

Options:

A.  

Filter selection

B.  

Dynamic range

C.  

Line density

D.  

Variance map selection

Discussion 0
Question # 55

What is assessed with power Doppler?

Options:

A.  

Laminar flow

B.  

Presence of flow

C.  

Velocity of flow

D.  

Viscosity

Discussion 0
Question # 56

What is the primary reason to use compression?

Options:

A.  

Increase line density

B.  

Reduce the focal region

C.  

Improve the axial resolution

D.  

Adjust the contrast resolution

Discussion 0
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