URR mock Exam 1 SPI Questions And
Answers
____ is defined as specific area or location where Doppler shift info
is being obtained.
A. spectral broadening
B. nyquist limit
C. sample volume
D. spectral window -
correct answer ✅C. sample volume
Spatial resolution is:
A. the minimum reflector separation required to produce separate
echos.
B. highest with linear phased arrays.
C. the weakest reflected signal the transducer can receive
D. another term for slice thickness resolution -
correct answer ✅A. the minumum reflector separation required to
produce echos
Which of the following Doppler angles would lead to the most
significant error in estimation of the flow velocity?
A. 25
B. 45
,URR mock Exam 1 SPI Questions And
Answers
C. 65
D. 80 -
correct answer ✅D. 80
which of the following necessary machine setting with performing a
contrast evolution of the heart?
A. harmonic imaging off
B. mechincal index set to 0.3 or lower
C. mechanical index set to 1.0 or greater
D. Low PRF color Doppler setting -
correct answer ✅B. mechanical index set to 0.3 or lower
How many pulses are needed per scan line in order to generate a
single frame of color Doppler?
A. 6
B. 1
C. 16
D. 3 -
correct answer ✅D. 3
,URR mock Exam 1 SPI Questions And
Answers
The rectus abdominis muscles are associated with ____, while the
diaphragm is associated with ______.
A. shadowing, enhancement
B. comet tail, ring down
C. refractive shadowing, lobe artifact
D. refraction artifact, mirror image artifact -
correct answer ✅D. refraction artifact, mirror image artifact
When evaluating a suspected arterial stenosis, a doppler angel of
____ degrees will produce the most accurate flow velocity.
A. 0
B. 30
C. 60
D. 90 -
correct answer ✅A. 0
Increasing the angle of electronic steering causes _____ production
of lobe artifact.
A. increased
B. decreased
, URR mock Exam 1 SPI Questions And
Answers
C. no change
D. limited -
correct answer ✅A. increased
Put the following media in order from lowest to highest according
to their acoustic impedance:
Bone
Air
Liver
Blood -
correct answer ✅Air, blood, liver, bone
Even and odd harmonic frequencies are created by:
A. alternating current to different piezoelectric elements in the
transducer array
B. non-linear sound wave propagation
C. variable timing of the firing of the piezoelectric elements
D. turbulent flow in the blood vessel -
correct answer ✅B. non-linear sound wave propagation
Answers
____ is defined as specific area or location where Doppler shift info
is being obtained.
A. spectral broadening
B. nyquist limit
C. sample volume
D. spectral window -
correct answer ✅C. sample volume
Spatial resolution is:
A. the minimum reflector separation required to produce separate
echos.
B. highest with linear phased arrays.
C. the weakest reflected signal the transducer can receive
D. another term for slice thickness resolution -
correct answer ✅A. the minumum reflector separation required to
produce echos
Which of the following Doppler angles would lead to the most
significant error in estimation of the flow velocity?
A. 25
B. 45
,URR mock Exam 1 SPI Questions And
Answers
C. 65
D. 80 -
correct answer ✅D. 80
which of the following necessary machine setting with performing a
contrast evolution of the heart?
A. harmonic imaging off
B. mechincal index set to 0.3 or lower
C. mechanical index set to 1.0 or greater
D. Low PRF color Doppler setting -
correct answer ✅B. mechanical index set to 0.3 or lower
How many pulses are needed per scan line in order to generate a
single frame of color Doppler?
A. 6
B. 1
C. 16
D. 3 -
correct answer ✅D. 3
,URR mock Exam 1 SPI Questions And
Answers
The rectus abdominis muscles are associated with ____, while the
diaphragm is associated with ______.
A. shadowing, enhancement
B. comet tail, ring down
C. refractive shadowing, lobe artifact
D. refraction artifact, mirror image artifact -
correct answer ✅D. refraction artifact, mirror image artifact
When evaluating a suspected arterial stenosis, a doppler angel of
____ degrees will produce the most accurate flow velocity.
A. 0
B. 30
C. 60
D. 90 -
correct answer ✅A. 0
Increasing the angle of electronic steering causes _____ production
of lobe artifact.
A. increased
B. decreased
, URR mock Exam 1 SPI Questions And
Answers
C. no change
D. limited -
correct answer ✅A. increased
Put the following media in order from lowest to highest according
to their acoustic impedance:
Bone
Air
Liver
Blood -
correct answer ✅Air, blood, liver, bone
Even and odd harmonic frequencies are created by:
A. alternating current to different piezoelectric elements in the
transducer array
B. non-linear sound wave propagation
C. variable timing of the firing of the piezoelectric elements
D. turbulent flow in the blood vessel -
correct answer ✅B. non-linear sound wave propagation
