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ARDMS SPI Review 2 Proven Exam Strategies for Academic Excellence with Expert-Verified Questions and Answers to Boost Your Performance!$27.99
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ARDMS SPI Review 2 Proven Exam Strategies
for Academic Excellence with Expert-Verified
Questions and Answers to Boost Your
Performance!
what is an advantage of using pulsed wave doppler compared to continuous wave
doppler?
A.higher echo sensitivity
B.ability to select sample depth
C.decreased display of aliasing
D.improved temporal resolution - CORRECT ANS- -B
what affects the beam width in the near field?
A.Pulse repetition frequency
B.Pulse duration
C.Frame rate
D.Transducer aperture - CORRECT ANS- -D
what is dynamic aperture?
A.aperture that varies with transmit frequency
B.aperture that decreases as a function of time
C.aperture that increases with increasing focal length
D.aperture that changes as a function of frame rate - CORRECT ANS- -C
to which acoustic variable is penetration depth inversely related?
A.frequency
,B.wavelength
C.period
D.propagation speed - CORRECT ANS- -A
which imaging mode requires a broadband transducer?
A.continuous wave doppler
B.Pulsed wave doppler
C.color flow imaging
D.harmonic imaging - CORRECT ANS- -B
what is the doppler shift frequency?
A.recieved ultrasound frequency multiplied by the transmitted ultrasound frequency
B.difference between the transmitted ultrasound frequency and the received ultrasound
frequency
C.sum of the transmitted and received ultrasound frequencies
D.ratio of the transmitted ultrasound frequency to the received ultrasound frequency -
CORRECT ANS- -B
what is the potential effect of increasing the pulse repetition frequency(PRF)?
A.Depth ambiguity
B.Decreased frame rate
C.Poor spatial resolution
D.Decreased penetration - CORRECT ANS- -D
what is the advantage of using pulsed-wave doppler versus continuous-wave doppler?
A.allows measurement of higher velocities
B.increases range ambiguity
,C.reduces the potential for aliasing
D.provides depth specificity - CORRECT ANS- -D
which parameter is target group C evaluating based on the image?
A.dead zone
B.dynamic range
C.axial resolution
D.Horizontal distance accuracy - CORRECT ANS- -D
What parameter is target group A evaluating based on the image? - CORRECT ANS- -
which ultrasound parameter directly affects an ultrasound beam's intensity?
A.TGC
B.operating frequency
C.Output power
D.Frame rate - CORRECT ANS- -C
the center frequency of a transducer depends primarily upon which characteristics of the
crystal?
A.width
B.length
C.spacing
D.thickness - CORRECT ANS- -D
which factor limits image frame rate?
A.transducer operating frequency
, B.Sample volume size
C.Speed of sound in tissue
D.Spatial pulse length - CORRECT ANS- -C
when using a 5MHZ transducer, in which tissue is the ultrasound wavelength shortest?
A.fat
B.blood
C.bone
D.muscle - CORRECT ANS- -A
which term describes the averaging together of scan lines from multiple angles to create
one image?
A.harmonic imaging
B.realtime three dimensional imaging
C.elastography
D.spatial compounding - CORRECT ANS- -D
which variable can cause an acoustic shadow artifact?
A.small acoustic impedance mismatch
B.refraction
C.perpendicular incidence
D.low attenuation - CORRECT ANS- -A
what does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
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