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5 W/cm^2
1 W/cm^2
0.2 W/cm^2
1 W/cm^2
Quadrupled
Doubled
Halved
Unchanged
10/cmsec
2 cm/sec
5 cm/sec
0.2 cm/sec
Angle of incident
Absorption
Bioeffects
Low frequency traveling in a fast medium
Low frequency traveling in a slow medium
High frequency traveling in a fast medium
High frequency traveling in a slow medium
Speed of sound in the medium
Dynamich range of the reciever
Frequency of the transducer
Transmitter output
Lower frame rate
Deeper imaging
Multi focus imaging
Narrower sector
Increased line density
Wider sector
Multi focus imaging turned on
Narrower sector
The temporal resolution was doubled
The sector size was doubled
The line density was doubled
The imaging depth was halved
The temporal resolution was doubled
The sector size was doubled
The line density was doubled
The imaging depth was halved
The frame rate increases
The temporal resolution decreases
The imaging quality decreases
The temporal resolution increases
Setting imaging depth to 3 cm
Changing imaging depth from 10 cm to 3 cm
Changing sector angle from 90 to 45 degrees
Changing imaging depth from 21 to 7 cm
Increasing output power by 3 db
Increasing imaging depth
Increasing transducer frequency
Increasing # of foci
Decreasing imaging depth
Decreasing sector size
20 Hz
100 Hz
50 Hz
15 Hz
True
False
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True
False
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Frequency shift, in motion relative to each other
Velocity shift, in motion relative to each other
Frequency shift, in motion not relative to each other
No Doppler shift will be created
A maximum Doppler shift is created
A minimum Doppler shift is created
The Doppler shift is in the MHz range
Positive
Negative
Positive
Negative
Location
Red blodd cells motion
Velocity
Speed has velocity
Velocity has magnitude
Speed has direction and magnitude
Velocity has magnitude and direction
Autocorreclation
Zero crossing detection
Range gating
FFT Fast Fourier Transfrom
1 - 20 Hz
20 Hz and 20 kHz
1 - 10,000 Khz
True
False
True
False
True
False
4 MHz
3.5 MHz
2.2 kHz
2.5 d b
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Dynamic range
Spatial resolution
Axial resolution
Sensitivity
Dynamic range
Range calibration
Spatial postivity
Lateral resolution
Dynamic range
Spatial positivity
Axial resloution
Depth calibration
90 mm
70 mm
63 mm
60 mm
7 mm
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