Resolution Flashcards

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1
Q

Superior image detail

A

Short Pulse Duration
Short SPL
Shallow Imaging

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2
Q

Long Pulse Duration

A

Many Cycles
Long Periods
Low Frequency

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3
Q

Short Pulse Duration

A

Few Cycles
Short Periods
High Frequency

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4
Q

Short SPL

A

Few Cycles
Short Wavelengths
High Frequencies

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5
Q

Long SPL

A

Many Cycles
Long Wavelengths
Short Frequencies

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6
Q

Shallow Imaging

A

Less Off Time
Short PRP
High PRF
High DF

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7
Q

Deep Imaging

A

More Off Time
High PRP
Short PRF
Short DF

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8
Q

Higher Spatial Resolution

A

Increase frequency
Decrease Depth of Penetration

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9
Q

Increase Spatial Resolution

A

Increase # of pixels
Increase line density

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10
Q

Increase Axial Resolution

A

increase frequency
increase ringing
decrease wavelength
decrease # of cycles

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11
Q

Coded Excitation

A

improves axial resolution
improves spatial resolution
improves contrast resolution
deeper penetration
B-flow imaging

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12
Q

Spatial Compounding

A

Improves image quality
improves shadowing artifacts
improves speckle reduction
reduces frame rates
reduces temporal resolution

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13
Q

Improve Lateral Resolution

A

increase frequency
increase diameter size
decrease divergence
increase # of focuses

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