ARDMS SPI Exam
A mechanical transducer utilizes:
a. Transmit recognition
b. Obtain focus
c. Constant cognizance
d. Dynamic aperture focusing - ANS-c. Fixed cognizance; sonographer can't decide the area of
# of foci. Mechanical transducer uses go sectional imaging, rotating wheel, wobbler, oscillating
reflect
A mirrored image will arise on the boundary of two media if the acoustic impedences of the two
media are:
a. Equal
b. Special
c. Unchanged
d. Can't be anticipated - ANS-b. One-of-a-kind
A strongly centered transducer implies a:
a. Brief focal length; reduced beam divergence
b. Medium focal period; expanded beam divergence
c. Lengthy focal length; no beam divergenc
d. Short focal duration; extended beam divergence - ANS-d. Short focal duration; accelerated
beam divergence
All of the following immediately affect body price besides:
a. Intensity of penetration
b. Discipline of view
c. Wide variety of focuses
d. Line density
e. Beam width - ANS-e. Beam width
An growth in standard gain will bring about all of the following besides:
a. Boom in photograph brightness
b. Boom in output energy
c. Growth in amplification of the returning sign
d. Lower hazard in bioeffects - ANS-b. Growth in electricity
An increase in packet size will _______ the body charge - ANS-Decrease
An boom in purple blood mobile speed will_____ the Doppler Shift:
a. Growth
b. Lower
c. No longer trade
d. Can not be predicted - ANS-a. Increase
An increase in the number of pixels at the show will improve: - ANS-detail decision
autocorrelation - ANS-used to transform Doppler shift records into colour.
B-mode displays reflector:
, a. Amplitude and distance
b. Amplitude and velocity
c. Electricity and route
d. Intensity and speed - ANS-a. Amplitude and distance
Clinical imaging transducers are: - ANS-huge bandwidth; low q component
Damping does no longer decrease: - ANS-bandwidth
Decibels are the gadgets for all of the following except:
a. Amplitude
b. Transmit gain
c. Advantage
d. Attenuation
e. TGC
f. Dynamic range
e. Depth - ANS-e. Depth= mW/cm2
Doppler excessive skip clear out gets rid of: - ANS-excessive amplitude alerts; low speed glide
Frequency is - ANS-Cycles in step with second (Hz)
no longer laid low with sonographer
growth frequency; lower depth
How do you lower period? - ANS-Increase frequency
Impedance - ANS-the competition of sound propagation
Increasing propagation speed: - ANS-air, soft tissue, bone
Increasing transmit gain increases everything except: - ANS-frequency
Increasing wavelength will ___________ frequency.
A. Boom
b. Decrease
c. Not trade
d. Cannot be predicted. - ANS-b. Decrease
Multiple echoes, similarly spaced originating from a gas bubble is referred to as:
a. Comet tail
b. Ring down
c. Slice thickness artifact
d. Multipath - ANS-b. Ring down
Period - ANS-the time in line with cycle
1-10usec
Period Calculation - ANS-1/frequency
1/5MHz= .2
Power/location= - ANS-Intensity
PRF - ANS-Pulse Repetition Frequency. The fee at which pulses are transmitted, given in hertz
or pulses in step with second; reciprocal of pulse-repetition time.
Propagation velocity is decided by using:
a. Frequency
b. Harmonics
c. Bandwidth
d. Bulk modulus - ANS-d. Bulk modulus
A mechanical transducer utilizes:
a. Transmit recognition
b. Obtain focus
c. Constant cognizance
d. Dynamic aperture focusing - ANS-c. Fixed cognizance; sonographer can't decide the area of
# of foci. Mechanical transducer uses go sectional imaging, rotating wheel, wobbler, oscillating
reflect
A mirrored image will arise on the boundary of two media if the acoustic impedences of the two
media are:
a. Equal
b. Special
c. Unchanged
d. Can't be anticipated - ANS-b. One-of-a-kind
A strongly centered transducer implies a:
a. Brief focal length; reduced beam divergence
b. Medium focal period; expanded beam divergence
c. Lengthy focal length; no beam divergenc
d. Short focal duration; extended beam divergence - ANS-d. Short focal duration; accelerated
beam divergence
All of the following immediately affect body price besides:
a. Intensity of penetration
b. Discipline of view
c. Wide variety of focuses
d. Line density
e. Beam width - ANS-e. Beam width
An growth in standard gain will bring about all of the following besides:
a. Boom in photograph brightness
b. Boom in output energy
c. Growth in amplification of the returning sign
d. Lower hazard in bioeffects - ANS-b. Growth in electricity
An increase in packet size will _______ the body charge - ANS-Decrease
An boom in purple blood mobile speed will_____ the Doppler Shift:
a. Growth
b. Lower
c. No longer trade
d. Can not be predicted - ANS-a. Increase
An increase in the number of pixels at the show will improve: - ANS-detail decision
autocorrelation - ANS-used to transform Doppler shift records into colour.
B-mode displays reflector:
, a. Amplitude and distance
b. Amplitude and velocity
c. Electricity and route
d. Intensity and speed - ANS-a. Amplitude and distance
Clinical imaging transducers are: - ANS-huge bandwidth; low q component
Damping does no longer decrease: - ANS-bandwidth
Decibels are the gadgets for all of the following except:
a. Amplitude
b. Transmit gain
c. Advantage
d. Attenuation
e. TGC
f. Dynamic range
e. Depth - ANS-e. Depth= mW/cm2
Doppler excessive skip clear out gets rid of: - ANS-excessive amplitude alerts; low speed glide
Frequency is - ANS-Cycles in step with second (Hz)
no longer laid low with sonographer
growth frequency; lower depth
How do you lower period? - ANS-Increase frequency
Impedance - ANS-the competition of sound propagation
Increasing propagation speed: - ANS-air, soft tissue, bone
Increasing transmit gain increases everything except: - ANS-frequency
Increasing wavelength will ___________ frequency.
A. Boom
b. Decrease
c. Not trade
d. Cannot be predicted. - ANS-b. Decrease
Multiple echoes, similarly spaced originating from a gas bubble is referred to as:
a. Comet tail
b. Ring down
c. Slice thickness artifact
d. Multipath - ANS-b. Ring down
Period - ANS-the time in line with cycle
1-10usec
Period Calculation - ANS-1/frequency
1/5MHz= .2
Power/location= - ANS-Intensity
PRF - ANS-Pulse Repetition Frequency. The fee at which pulses are transmitted, given in hertz
or pulses in step with second; reciprocal of pulse-repetition time.
Propagation velocity is decided by using:
a. Frequency
b. Harmonics
c. Bandwidth
d. Bulk modulus - ANS-d. Bulk modulus
