Edelmen's SPI Exam Review
______ is the gap blanketed via one cycle.
A) pulse length
b) wavelength
c) cycle distance
d) cycle period - ANS-B
______ is the time to finish one cycle
a) pulse length
b) pulse duration
c) duration
d) duration duration - ANS-C
________ is a redirection of an ultrasound bean in many directions because of a tough
boundary among media:
a) refraction
b) Rayleigh Scattering
c) scattering
d) reflection - ANS-C
_________ resolution is decided through the spatial pulse period
a) radial
b) photo
c) axial
d) angular - ANS-A or C
*A unmarried element transduce is targeted by using
a) by means of the manufacturer
b) cannot be focused
c) through increasing energy
d) by means of the sonographer - ANS-A
*In the analog converter, what thing shops the image data?
A) pc memory
b) video tape recorder
c) diaeletric matrix
d) none of the above - ANS-C
*Which of the subsequent will result in the very best mechanical index?
A) high frequency and occasional strength
,b) excessive depth and excessive frequency
c) low frequency and excessive signal amplitude
d) low depth and coffee frequency - ANS-C
*Which of those elements has the greatest impact on pulse repetition duration?
A) show depth
b) thickness of the PZT crystal
c) attenuation of the sound beam
d) impedance of the medium
e) display's dynamic range - ANS-A
*With normal occurrence, what factors affect refraction of US?
A) propagation speeds
B) frequencies
C) attenuation coefficients
D) not one of the above - ANS-D
A hydrophone is used to measure:
a) speed
b) frequency
c) intensity
d) section - ANS-B or C
A high-quality assurance application:
a) isn't wished in small labs
b) may be very time ingesting and luxurious
c) is needed by way of all labs
d) cannot be completed by way of sonographers - ANS-C
A transducer ________ one shape of ________ into any other. - ANS-converts, energy
A transducer with more than one active element is called:
a) multipurpose
b) annular
c) mechanical
d) array - ANS-D
According to AIUM announcement on bioeffects, there had been no showed bioeffects beneath
intensities of ________ watts in line with rectangular centimeters SPTA.
A) 10
b) 0.01
c) 0.1
d) 1
,e) 100 - ANS-C
All of the following are statements regarding in-vitro bioeffects are real EXCEPT:
a) in vitro bioeffect conclusions are clinically applicable
b) in vitro bioeffects are always real
c) in vitro bioeffects are very critical
d) in vitro bioeffects may not be relevant to medical settings - ANS-A
All of the subsequent are actual EXCEPT:
a) waves with same frequencies should intrude constructively.
B) optimistic interference is related to waves which might be in-phase.
C) out-of-segment waves interfere destructively.
D) waves of various frequencies can also exhibit both optimistic and detrimental interference at
different times. - ANS-A
All of the following are proper of normal cavitation EXCEPT:
a) dangerous bioeffects are generally discovered
b) it's also called inertial cavitation
c) simplest a ten% increase in pressure is wanted to convert to this from table cavitation
d) temperatures in the heaps of degrees are created
e) it's far regular with surprise waves - ANS-A
All of the following will improve temporal resolution EXCEPT:
a) improved line density
b) unmarried as opposed to multi awareness
c) higher body rate
d) shallower intensity of field
e) slower speed of sound in a medium - ANS-A
An ultrasound system has a virtual test converter however has an analog input sign. The
machine desires to have a
a) hydbrid multiplexer
b) modem
c) analog to digital converter
d) virtual screen - ANS-C
An ultrasound gadget is set to 0db and is transmitting at full intensity. What is the output
strength whilst the system is transmitting at 10% of complete intensity?
A) -three dB
b) -50 dB
c) forty dB
d) 3 dB
e) -10 dB - ANS-E
, An ultrasound device is ready to 0db and is transmitting at complete intensity. What is the output
power while the machine is transmitting at 50% of full intensity?
A) -3 dB
b) -50 dB
c) 10 dB
d) 3 dB
e) -10 dB - ANS-A
As a result of _____ the propagation velocity will increase.
A) increasing stiffness and increasing density
b) growing stiffness and increasing elasticity
c) reducing compressibility and reducing density
d) lowering stiffness and reducing density. - ANS-C
As the impedance of media emerge as massively specific, the....
A) reflection will increase
b) transmission will increase
c) refraction will increase
d) absorption will increase - ANS-A
Assuming a consistent frequency, what takes place if the diameter of an unfocused round
transducer is improved?
A) the distance to the far area is decreased
b) the beam width within the close to subject is reduced
c) the beam width inside the near discipline is multiplied
d) the ultrasound wavelength is multiplied
e) the sensitivity is reduced - ANS-C
At the focal point, the beam diameter is______ the diameter transducer diameter.
A) identical to
b) 1/2
c) double
d) one-fourth - ANS-B
Attenuation of ultrasound in soft tissue identification closest to:
a) 3dB/1 Mhz
b) 1dB/cm/10 Mhz
c) 2 dB/cm
d) zero.6 dB/cm/MHz - ANS-D
Biologic outcomes have now not been documented beneath what intensity? (SPTA)
a) a hundred w/cm
b) a hundred mW/ cm^2
c) 100 mW/cm^2
______ is the gap blanketed via one cycle.
A) pulse length
b) wavelength
c) cycle distance
d) cycle period - ANS-B
______ is the time to finish one cycle
a) pulse length
b) pulse duration
c) duration
d) duration duration - ANS-C
________ is a redirection of an ultrasound bean in many directions because of a tough
boundary among media:
a) refraction
b) Rayleigh Scattering
c) scattering
d) reflection - ANS-C
_________ resolution is decided through the spatial pulse period
a) radial
b) photo
c) axial
d) angular - ANS-A or C
*A unmarried element transduce is targeted by using
a) by means of the manufacturer
b) cannot be focused
c) through increasing energy
d) by means of the sonographer - ANS-A
*In the analog converter, what thing shops the image data?
A) pc memory
b) video tape recorder
c) diaeletric matrix
d) none of the above - ANS-C
*Which of the subsequent will result in the very best mechanical index?
A) high frequency and occasional strength
,b) excessive depth and excessive frequency
c) low frequency and excessive signal amplitude
d) low depth and coffee frequency - ANS-C
*Which of those elements has the greatest impact on pulse repetition duration?
A) show depth
b) thickness of the PZT crystal
c) attenuation of the sound beam
d) impedance of the medium
e) display's dynamic range - ANS-A
*With normal occurrence, what factors affect refraction of US?
A) propagation speeds
B) frequencies
C) attenuation coefficients
D) not one of the above - ANS-D
A hydrophone is used to measure:
a) speed
b) frequency
c) intensity
d) section - ANS-B or C
A high-quality assurance application:
a) isn't wished in small labs
b) may be very time ingesting and luxurious
c) is needed by way of all labs
d) cannot be completed by way of sonographers - ANS-C
A transducer ________ one shape of ________ into any other. - ANS-converts, energy
A transducer with more than one active element is called:
a) multipurpose
b) annular
c) mechanical
d) array - ANS-D
According to AIUM announcement on bioeffects, there had been no showed bioeffects beneath
intensities of ________ watts in line with rectangular centimeters SPTA.
A) 10
b) 0.01
c) 0.1
d) 1
,e) 100 - ANS-C
All of the following are statements regarding in-vitro bioeffects are real EXCEPT:
a) in vitro bioeffect conclusions are clinically applicable
b) in vitro bioeffects are always real
c) in vitro bioeffects are very critical
d) in vitro bioeffects may not be relevant to medical settings - ANS-A
All of the subsequent are actual EXCEPT:
a) waves with same frequencies should intrude constructively.
B) optimistic interference is related to waves which might be in-phase.
C) out-of-segment waves interfere destructively.
D) waves of various frequencies can also exhibit both optimistic and detrimental interference at
different times. - ANS-A
All of the following are proper of normal cavitation EXCEPT:
a) dangerous bioeffects are generally discovered
b) it's also called inertial cavitation
c) simplest a ten% increase in pressure is wanted to convert to this from table cavitation
d) temperatures in the heaps of degrees are created
e) it's far regular with surprise waves - ANS-A
All of the following will improve temporal resolution EXCEPT:
a) improved line density
b) unmarried as opposed to multi awareness
c) higher body rate
d) shallower intensity of field
e) slower speed of sound in a medium - ANS-A
An ultrasound system has a virtual test converter however has an analog input sign. The
machine desires to have a
a) hydbrid multiplexer
b) modem
c) analog to digital converter
d) virtual screen - ANS-C
An ultrasound gadget is set to 0db and is transmitting at full intensity. What is the output
strength whilst the system is transmitting at 10% of complete intensity?
A) -three dB
b) -50 dB
c) forty dB
d) 3 dB
e) -10 dB - ANS-E
, An ultrasound device is ready to 0db and is transmitting at complete intensity. What is the output
power while the machine is transmitting at 50% of full intensity?
A) -3 dB
b) -50 dB
c) 10 dB
d) 3 dB
e) -10 dB - ANS-A
As a result of _____ the propagation velocity will increase.
A) increasing stiffness and increasing density
b) growing stiffness and increasing elasticity
c) reducing compressibility and reducing density
d) lowering stiffness and reducing density. - ANS-C
As the impedance of media emerge as massively specific, the....
A) reflection will increase
b) transmission will increase
c) refraction will increase
d) absorption will increase - ANS-A
Assuming a consistent frequency, what takes place if the diameter of an unfocused round
transducer is improved?
A) the distance to the far area is decreased
b) the beam width within the close to subject is reduced
c) the beam width inside the near discipline is multiplied
d) the ultrasound wavelength is multiplied
e) the sensitivity is reduced - ANS-C
At the focal point, the beam diameter is______ the diameter transducer diameter.
A) identical to
b) 1/2
c) double
d) one-fourth - ANS-B
Attenuation of ultrasound in soft tissue identification closest to:
a) 3dB/1 Mhz
b) 1dB/cm/10 Mhz
c) 2 dB/cm
d) zero.6 dB/cm/MHz - ANS-D
Biologic outcomes have now not been documented beneath what intensity? (SPTA)
a) a hundred w/cm
b) a hundred mW/ cm^2
c) 100 mW/cm^2
