Resolution

Question 1

Superior image detail

Answer 1

Short Pulse Duration
Short SPL
Shallow Imaging

Question 2

Long Pulse Duration

Answer 2

Many Cycles
Long Periods
Low Frequency

Question 3

Short Pulse Duration

Answer 3

Few Cycles
Short Periods
High Frequency

Question 4

Short SPL

Answer 4

Few Cycles
Short Wavelengths
High Frequencies

Question 5

Long SPL

Answer 5

Many Cycles
Long Wavelengths
Short Frequencies

Question 6

Shallow Imaging

Answer 6

Less Off Time
Short PRP
High PRF
High DF

Question 7

Deep Imaging

Answer 7

More Off Time
High PRP
Short PRF
Short DF

Question 8

Higher Spatial Resolution

Answer 8

Increase frequency
Decrease Depth of Penetration

Question 9

Increase Spatial Resolution

Answer 9

Increase # of pixels
Increase line density

Question 10

Increase Axial Resolution

Answer 10

increase frequency
increase ringing
decrease wavelength
decrease # of cycles

Question 11

Coded Excitation

Answer 11

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

Question 12

Spatial Compounding

Answer 12

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

Question 13

Improve Lateral Resolution

Answer 13

increase frequency
increase diameter size
decrease divergence
increase # of focuses