DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
1. what artifact will you see in the color 7. This
Doppler image if you cannot increase the PRF Doppler
to a level grater than 2 times that of the waveform
Doppler frequency shift? can be
most
2. the waveform you obtained from an arterial accuratel
stenosis demonstrates aliasing. if you increase y de-
the pulse repe- tition frequency to eliminate the scribed as
aliasing, what artifact could be introduced? exhibiting
:
3. The ratio of the largest to the smallest signal
that a system can handle is termed:
A: Apodization
B:
Compression
C: Threshold
D: Dynamic range
E: Pulse repetition frequenc
4. you made changes to the following controls
during a sonogram. which adjustment increased
the duty fac- tor?
5. when you increase the scanning depth,
which of the following is automatically
decreased by the system to avoid range
ambiguity?
6. which term below most commonly
describes the Doppler waveform?
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
aliasing
range ambiguity
d. dynamic range
increasing PRF
PRF
spectral mirroring
aliasing
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
A: Aliasing
B: Spectral
broadening C: Mirror
image
D: Bidirectional
flow E: Saturation
8. what does the Doppler signal spectral display depict? relative signal
power at
each frequency in the
Doppler signal
9. Five transducers are imaging a vessel at different
inci- E dent angles. The arrow indicates the
direction of blood flow. Which transducer
would NOT detect a Doppler frequency shift?
10. what term describes the number of pulses that packet size
are used to determine the velocity along a
color line of sight?
11. What Doppler control should be adjusted to
c. gain
optimize this Doppler spectral waveform?
A: Wall filter
B: Packet
size C: Gain
D: Pulse repetition
frequency E: Baseline
12. What parameter describes the axial length of the sam- a. color samp
gate
pling volume for a color
pixel? A: Color sample
gate
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
B: Packet size
C: Pulse repetition frequency
CORRECTLY!!!
1. what artifact will you see in the color 7. This
Doppler image if you cannot increase the PRF Doppler
to a level grater than 2 times that of the waveform
Doppler frequency shift? can be
most
2. the waveform you obtained from an arterial accuratel
stenosis demonstrates aliasing. if you increase y de-
the pulse repe- tition frequency to eliminate the scribed as
aliasing, what artifact could be introduced? exhibiting
:
3. The ratio of the largest to the smallest signal
that a system can handle is termed:
A: Apodization
B:
Compression
C: Threshold
D: Dynamic range
E: Pulse repetition frequenc
4. you made changes to the following controls
during a sonogram. which adjustment increased
the duty fac- tor?
5. when you increase the scanning depth,
which of the following is automatically
decreased by the system to avoid range
ambiguity?
6. which term below most commonly
describes the Doppler waveform?
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
aliasing
range ambiguity
d. dynamic range
increasing PRF
PRF
spectral mirroring
aliasing
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
A: Aliasing
B: Spectral
broadening C: Mirror
image
D: Bidirectional
flow E: Saturation
8. what does the Doppler signal spectral display depict? relative signal
power at
each frequency in the
Doppler signal
9. Five transducers are imaging a vessel at different
inci- E dent angles. The arrow indicates the
direction of blood flow. Which transducer
would NOT detect a Doppler frequency shift?
10. what term describes the number of pulses that packet size
are used to determine the velocity along a
color line of sight?
11. What Doppler control should be adjusted to
c. gain
optimize this Doppler spectral waveform?
A: Wall filter
B: Packet
size C: Gain
D: Pulse repetition
frequency E: Baseline
12. What parameter describes the axial length of the sam- a. color samp
gate
pling volume for a color
pixel? A: Color sample
gate
, DAVIES DOPPLER- Doppler Physics EXAM 1 ANSWERED
CORRECTLY!!!
B: Packet size
C: Pulse repetition frequency
