2024 SPI ARDMS TEST A AND B
EXAM WITH CORRECT ANSWERS
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-ANSWERSC
to which acoustic variable is penetration depth inversely related?
A.frequency
B.wavelength
C.period
D.propagation speed - CORRECT-ANSWERSA
Which parameter is most related to cavitation tissue?
A. energy
B. pressure
C. duty factor
D. pulse repetition frequency - CORRECT-ANSWERSB
Which interface will cause the maximum reflection of the incident sound
beam?
A. fat/muscle
B. soft tissue/bone
C. fat/soft tissue
D. soft tissue/lung - CORRECT-ANSWERSB
Acoustic enhancement occurs distal to what?
A. calcifications
B. near field interface
C. highly reflecting structure
D. weakly attenuating structure - CORRECT-ANSWERSD
As the pressure amplitude of ultrasound doubles, what happens to the
wavelength?
A. quadruples
B. doubles
C. halves
D. unchanged - CORRECT-ANSWERSD
What is the period of a 5 MHz ultrasound wave?
, A. 0.02 ms
B. 0.2 ms
C. .5mc
D. 5ms - CORRECT-ANSWERSB
What limits diagnostic application at higher frequencies?
A. noise
B. tissue penetration
C. contrast resolution
D. temporal resolution - CORRECT-ANSWERSB
What is the function of a lens on a transducer?
A. focus the beam
B. increase the bandwidth
C. shorten the pulse length
D. provide damping - CORRECT-ANSWERSA
What would improve axial resolution?
A. increase the pulse repetition frequency
B. reduce the receiver gain
C. change the gray scale map
D. increase the transducer frequency - CORRECT-ANSWERSD
What is true of the far field?
A. sound beam converges
B. intensity is highest
C. lateral resolution is best
D. sound beam diverges - CORRECT-ANSWERSD
what improves lateral resolution?
A. decreasing the beam width
B. increasing the pulse repetition frequency
C. decreasing transmitted frequency
D. decreasing the width of the field of view - CORRECT-ANSWERSA
Which statement is true for a linear phased array transducer?
A. line density increases with depth
B. elements are all fired nearly simultaneously
C. elements are fired in successive groups
D. all scan lines are perpendicular to the face of the transducer - CORRECT-
ANSWERSB
Which artifact is commonly seen within cystic masses due to the finite
dimensions of the ultrasound beam?
A. duplication
B. mirror image
EXAM WITH CORRECT ANSWERS
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-ANSWERSC
to which acoustic variable is penetration depth inversely related?
A.frequency
B.wavelength
C.period
D.propagation speed - CORRECT-ANSWERSA
Which parameter is most related to cavitation tissue?
A. energy
B. pressure
C. duty factor
D. pulse repetition frequency - CORRECT-ANSWERSB
Which interface will cause the maximum reflection of the incident sound
beam?
A. fat/muscle
B. soft tissue/bone
C. fat/soft tissue
D. soft tissue/lung - CORRECT-ANSWERSB
Acoustic enhancement occurs distal to what?
A. calcifications
B. near field interface
C. highly reflecting structure
D. weakly attenuating structure - CORRECT-ANSWERSD
As the pressure amplitude of ultrasound doubles, what happens to the
wavelength?
A. quadruples
B. doubles
C. halves
D. unchanged - CORRECT-ANSWERSD
What is the period of a 5 MHz ultrasound wave?
, A. 0.02 ms
B. 0.2 ms
C. .5mc
D. 5ms - CORRECT-ANSWERSB
What limits diagnostic application at higher frequencies?
A. noise
B. tissue penetration
C. contrast resolution
D. temporal resolution - CORRECT-ANSWERSB
What is the function of a lens on a transducer?
A. focus the beam
B. increase the bandwidth
C. shorten the pulse length
D. provide damping - CORRECT-ANSWERSA
What would improve axial resolution?
A. increase the pulse repetition frequency
B. reduce the receiver gain
C. change the gray scale map
D. increase the transducer frequency - CORRECT-ANSWERSD
What is true of the far field?
A. sound beam converges
B. intensity is highest
C. lateral resolution is best
D. sound beam diverges - CORRECT-ANSWERSD
what improves lateral resolution?
A. decreasing the beam width
B. increasing the pulse repetition frequency
C. decreasing transmitted frequency
D. decreasing the width of the field of view - CORRECT-ANSWERSA
Which statement is true for a linear phased array transducer?
A. line density increases with depth
B. elements are all fired nearly simultaneously
C. elements are fired in successive groups
D. all scan lines are perpendicular to the face of the transducer - CORRECT-
ANSWERSB
Which artifact is commonly seen within cystic masses due to the finite
dimensions of the ultrasound beam?
A. duplication
B. mirror image
