Artifacts

Artifacts

Professional Development

23 Qs

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Artifacts

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Assessment

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Professional Development

Practice Problem

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Reese Adams

Used 2+ times

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An artifact is not:

An incorrect size or shape

Incorrect position

Incorrect brightness

A real structure

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is an assumption of the imaging device that if broken causes an artifact?

Sound travels exactly 1540 m/s

Imaging plane is very thin

Strength if a reflection is related to the characteristics of the tissue

Sound travels directly to a reflector and back

All of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which artifact is primarily produced by refraction?

Posterior enhancement

Shadowing

Comet tail

Refraction

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which adjustment will reduce the artifact in the cystic lesion in image A resulting in image B?

Turn on harmonics

Change to a 1.5 D linear transducer

Decrease gain

Change imaging plane

Answer explanation

Though all the above could correct the image, harmonics is a way to fix lobe artifact specifically.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the best way to fix this image?

Leave it- it helps characterize the tissue

TGC adjustment

Overall gain

Change angle

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How to change the image artifact shown by B?

Use a 1 D linear transducer

Decrease output power

Move focus

Decrease image depth

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the artifact shown by the white arrow?

Speed error

Mirror image artifact

Comet tail

Focal enhancement

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