Echo A lab: Week 6 Key Terms

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9 Terms

1
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What is Hertz?

Cycles per second

2
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What is Pulse repetition frequency?

Pulses per second

3
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What is Frame rate?

Frames per second

4
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What is Grayscale?

Display mode in which echo intensity is recorded as degrees of brightness or shades of gray

5
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What is Far gain?

Control that affects the strength of the distant echoes in the image

6
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What is Near gain?

The amplification of echoes returning from the near field

7
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What is Noise?

Artifactual echoes resulting from too much gain rather than echoes from true anatomic structures

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What is Resolution?

Ability to distinguish between two adjacent structures

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What is Spatial resolution?

How closely positioned two reflectors can be to one another and still be identified as separate reflectors on an image display