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SPI version C

SPI version C
100問 • 1年前
  • Karla Alvarez
    • 通報

    問題一覧

  • 1

    Which of the following correctly describes how the elements of a sequential linear transducer are excited?

    D) in a specific order that does not change

  • 2

    Decreasing the pulse repetition period leads to

    C) a decrease in the maximum depth that can be imaged

  • 3

    which of the following system adjustments can be used to help demonstrate the presence of posterior shadowing seen with gallstones

    B) decreased dynamic range

  • 4

    what acoustic artifact is noted in the Doppler tracing?

    D) electrical interference

  • 5

    The damping material causes a ____ bandwidth and a ____ Quality factor

    A) wider, lower

  • 6

    if you suspect the ultrasound system is placing the same structure at different locations on the image, depending on the window used to obtain the image. What should you evaluate on the system?

    A) registration accuracy

  • 7

    using the third waveform place the first cursor used to begin the resistive index measurement?

    green pointer

  • 8

    which of the following characteristics of an LCD monitor determines the spatial resolution of a 2-D image

    C) number of pixels

  • 9

    which of the following is/are responsible for a significant drop and pressure and damped pulsatility of arterial flow to allow for consistent oxygen and nutrient exchange

    C) arterioles

  • 10

    The Doppler tracing demonstrates electrical noise. How can you reduce or eliminate the artifact?

    C) increase the wall filter settings

  • 11

    When using a 3-6 MHz transducer which frequency will offer the best penetration

    A) 3 MHZ

  • 12

    what system control can reduce the appearance of clutter on a Color Doppler image

    D) decreasing color priority

  • 13

    which of the following parameters will change when the sonographer decreases the imaging depth?

    A) increased PRF

  • 14

    why is there no color flow displayed in the right hepatic vein?

    B) the blood flow is perpendicular to the beam at a 90° angle and is undetectable

  • 15

    what can be done to reduce the mechanical index level during an exam?

    A) reduce output power

  • 16

    what type of transducer array has the fewest number of elements?

    C) annular array

  • 17

    if you change from a transducer with 40mm Crystal thickness to one with a 20mm Crystal thickness the frequency of the sound produced will

    B) double

  • 18

    The term ____ refers to when all layers of blood flow are moving at relatively the same speed

    C) Plug flow

  • 19

    which of the following will increase the spatial pulse length

    D) decreased transducer frequency

  • 20

    harmonic frequencies are generated

    B) as the soundwave travels through the medium

  • 21

    lobe artifacts

    B) always appear beside the actual structure on the image

  • 22

    which of the following imaging techniques demonstrate subtle changes in echogenicity and improves contrast resolution

    A

  • 23

    which of the arrows on the image demonstrate the pulse duration

    A

  • 24

    doppler shift is

    A) the difference between the transmitted frequency and the reflected frequency

  • 25

    why did the sonographer steer the ultrasound image during the thyroid biopsy?

    C) to make the ultrasound be more perpendicular to the long axis of the needle

  • 26

    which operator control can be used to adjust the image contrast

    C) dynamic range

  • 27

    Your department recently upgraded the display monitors from a 512x512 matrix to 1024x1024 matrix how will this affect the image displayed?

    C) improved contrast resolution

  • 28

    when the ultrasound beam is absorbed by the medium energy is lost in the form of

    B) heat

  • 29

    volume averaging artifact causes

    A) degraded contrast and spatial resolution

  • 30

    when a patient is supine, what is the hydrostatic pressure at the ankles?

    A) 0 mmHg

  • 31

    which of the following acronyms refers to the standard image files storage format used in medical facilities in the United States

    B) DICOM

  • 32

    which of the following is primarily responsible for the display of flow in Doppler imaging

    B) Rayleigh scattering

  • 33

    when evaluating a focal stenosis of an artery, where should you place the cursor to obtain the highest of velocity related to the stenosis?

    A) at the narrowest point in the vessel or immediately distal to the focal point of the stenosis

  • 34

    for color flow Doppler, flow that is perpendicular to the ultrasound beam will be presented by the color

    D) black

  • 35

    A ____ MHz transducer will have the thinnest element

    D) 12

  • 36

    according to the attached color map, what color will the blood be demonstrated that is moving away from the probe at 30 cm/s and is highly turbulent?

    B) green

  • 37

    The vertical axis on the M-mode display represents the

    D) depth of the reflector

  • 38

    as more reflections occur with reverberation, they each become ______ and are placed ____ on the image

    D) weaker, deeper

  • 39

    increasing the color Doppler sample size will cause

    C) the frame rate to decrease

  • 40

    if the sonographer increases the size of the field of view, the frame rate will

    B) decrease

  • 41

    which of the following is true regarding annular arrays and linear arrays

    C) annular array must be mechanically steered linear arrays use electronic steering

  • 42

    which of the following will allow for display of the most shades of gray on the image?

    A) large pixel wide with 24 bits / pixel

  • 43

    pulse inversion imaging improves ____ while degrading _____

    A) spatial resolution, temporal resolution

  • 44

    Rayleigh scatter increases with

    D) increasing probe frequency

  • 45

    which of the following is related to the appearance of Rouleaux formation on the image

    D) slow moving blood flow

  • 46

    Which of the following will improve contrast resolution?

    D) coded excitation

  • 47

    which of the following will lead to more color displayed in real time in the abdominal aorta

    D) increase persistence

  • 48

    The wave form demonstrated was taken from a normal posterior tibial artery in the left leg which of the following statements is true regarding the tracing

    D) the wall filter is set too high, which is removing flow information from the tracing

  • 49

    as a pulse travels through a medium the amplitude of the pulse

    C) decreases

  • 50

    The unit for period of a diagnostic ultrasound wave is

    A) microsecond

  • 51

    pulse echo systems use strength and ____ of the received signal to create the grayscale image. Magnitude and _____ of the received signal are used to create the Doppler display.

    A) time of flight, direction

  • 52

    A 7 MHz transducer emits a range of frequencies between 4 MHz and 10 MHz. What is the bandwidth of the transducer?

    A) 6 MHz

  • 53

    which of the following correctly describes when to remove personal protective equipment after completing an ultrasound exam on a patient with Covid

    B) remove everything but the respirator before leaving the patient care area

  • 54

    during refraction, if the angle of the wave transmission increases as it enters the second media then the new media has ____ propagation speed, then the first media

    B) a higher

  • 55

    which of the following would cause artifactual debris within a simple cyst?

    C) short distance from the transducer

  • 56

    which of the following instrument controls does the sonographer use to adjust the amplitude of a reflected of sound wave?

    A) receiver gain

  • 57

    Which of the following machine settings will improve the attached image?

    A) activate electronic steering

  • 58

    range resolution is a primary advantage of

    A) PW Doppler over CW Doppler

  • 59

    if the number of ultrasound pulses per scan line increases

    D) the color packet size will increase

  • 60

    The term ____ is described as the filling in of the spectral window on a Doppler tracing that is caused by turbulence

    A) spectral broadening

  • 61

    which of the following should be increased when evaluating Venous flow with color Doppler

    B) color priority

  • 62

    which image demonstrates refractive shadowing

    D

  • 63

    Young’s modulus is used to determine what is displayed on the image during

    B) elastography

  • 64

    which of the following tissue interfaces will cause the greatest amount of spectral reflection

    C) liver parenchyma- diaphragm

  • 65

    which of the following transducers can be used to safely scan the patient

    D) Betadine infiltration of the matching layer

  • 66

    which of the following correctly describes a variance color map

    D) flow that demonstrates a Reynolds number greater than 2000 on color Doppler will most likely be displayed as green color with a variance map

  • 67

    which of the following are disadvantages of power Doppler

    A) Slow frame rates and flash artifacts

  • 68

    The frequency of the transducer is increased from 2.5 MHz to 10 MHz. What happened to the wavelength?

    A) decreased to 1/4 original wavelength

  • 69

    an area of high pressure and particle density on a pressure wave is referred to as a __[[

    D) compression

  • 70

    what is the primary advantage of power Doppler?

    D) power Doppler is more sensitive than color Doppler

  • 71

    what is the best way to adjust the console controls to eliminate the Doppler artifact

    B) raise the baseline

  • 72

    The linear transducer you are using has 7-5MHz printed on the side of the housing what probe characteristic is this?

    A) bandwidth

  • 73

    an advantage of virtual beam forming over traditional pulse echo instrumentation is

    C) no transmit focusing needed

  • 74

    if a renal artery, Doppler exam demonstrates normal flow and normal flow is identified on angiography evaluation the ultrasound results described as

    C) true negative

  • 75

    if the patient being evaluated has a known cardiac arrhythmia, how would you adjust the Doppler controls to best display the arrhythmia?

    C) reduce the sweep speed

  • 76

    if the Doppler cursor angle is underestimated, the velocity of flow will be

    D) underestimated

  • 77

    which system component improves lateral resolution

    B) pulser

  • 78

    which of the following Doppler measurement requires the weight form to be traced from start of systole to the end of diastole

    B) pulsatility index

  • 79

    A wave that oscillates at 40 cycles per second has a frequency of

    A) 40 Hz

  • 80

    what is the term used for unwanted Doppler display patterns typically caused by structure motion or breathing?

    C) clutter

  • 81

    which of the following system functions allow the linear transducer to offer a trapezoidal field of view

    C) electronic steering

  • 82

    to increase the amplitude of the ultrasound pulse produced by transducer

    B) the voltage amplitude from the pulser must increase

  • 83

    virtual beam forming significantly improves all types of resolution compared to pulse echo imaging except

    D) axial resolution

  • 84

    which of the following describes the best way to improve the display of flow information on the waveform

    D) decrease maximum velocity of the Doppler scale to 0.70 m/s

  • 85

    what leads to the increase propagation speed of sound in the media in which it travels

    D) increased stiffness

  • 86

    lateral resolution is best at what location in the beam

    A) focal point

  • 87

    which of the following adjustments will improve temporal resolution on color Doppler

    C) decease sample size

  • 88

    ultrasound can potentially harmful to a fetus if the examination raises the temperature in the womb to a temperature greater than ____ celsius

    B) 41 degrees

  • 89

    The AIUM has stated that there have been no confirm reports of thermal bioeffects to living mammals with ultrasound exposure if the temperature rise and tissue is less than

    A) 2° Celsius

  • 90

    while scanning an obese patient, you apply color Doppler to the aorta. when you adjust the placement of the box there is a display between your adjustment and the box moving on the image how can you correct this?

    C) activate write magnification over the area of interest

  • 91

    which arrow indicates where the end diastolic velocity should be measured

    D) green

  • 92

    which of the following is an abnormality that would lead to increase in the Reynolds number

    C) stenosis of the vessel

  • 93

    The rectus abdominis muscles are commonly associated with what type of artifact

    D) refraction

  • 94

    what artifact is demonstrated on the ultrasound image posterior to the gallbladder?

    B) clean posterior shadowing

  • 95

    which of the following correctly describes the positive predictive value (PPV) of a testing technique

    D) if the test result is positive PPV is the probability that the patient actually has the disease

  • 96

    according to the attached color map, what color will the blood be demonstrated that is turbulent and moving toward the probe at 60 cm/s

    C) green

  • 97

    which of the following describes the preferred placement of the focal zone on standard imaging

    C) just below the area of interest on the image

  • 98

    increase damping improves axial resolution but decreases ___

    A) sensitivity

  • 99

    which of the following artifacts can NOT be corrected by increasing the wall filter setting

    A) aliasing artifact

  • 100

    which of the following will improve the signal-to-noise ratio of the image?

    C) use of ultrasound contrast

    • SPI version A

    SPI version A

    Karla Alvarez · 100問 · 1年前

    SPI version A

    SPI version A

    100問 • 1年前
    Karla Alvarez

    SPI version A pt 2

    SPI version A pt 2

    Karla Alvarez · 66問 · 1年前

    SPI version A pt 2

    SPI version A pt 2

    66問 • 1年前
    Karla Alvarez

    SPI version B

    SPI version B

    Karla Alvarez · 100問 · 1年前

    SPI version B

    SPI version B

    100問 • 1年前
    Karla Alvarez

    SPI version B pt 2

    SPI version B pt 2

    Karla Alvarez · 67問 · 1年前

    SPI version B pt 2

    SPI version B pt 2

    67問 • 1年前
    Karla Alvarez

    SPI version C pt 2

    SPI version C pt 2

    Karla Alvarez · 61問 · 1年前

    SPI version C pt 2

    SPI version C pt 2

    61問 • 1年前
    Karla Alvarez

    SPI version D

    SPI version D

    Karla Alvarez · 100問 · 1年前

    SPI version D

    SPI version D

    100問 • 1年前
    Karla Alvarez

    SPI version D pt 2

    SPI version D pt 2

    Karla Alvarez · 61問 · 1年前

    SPI version D pt 2

    SPI version D pt 2

    61問 • 1年前
    Karla Alvarez

    ARDMS version A & B

    ARDMS version A & B

    Karla Alvarez · 77問 · 1年前

    ARDMS version A & B

    ARDMS version A & B

    77問 • 1年前
    Karla Alvarez

    問題一覧

  • 1

    Which of the following correctly describes how the elements of a sequential linear transducer are excited?

    D) in a specific order that does not change

  • 2

    Decreasing the pulse repetition period leads to

    C) a decrease in the maximum depth that can be imaged

  • 3

    which of the following system adjustments can be used to help demonstrate the presence of posterior shadowing seen with gallstones

    B) decreased dynamic range

  • 4

    what acoustic artifact is noted in the Doppler tracing?

    D) electrical interference

  • 5

    The damping material causes a ____ bandwidth and a ____ Quality factor

    A) wider, lower

  • 6

    if you suspect the ultrasound system is placing the same structure at different locations on the image, depending on the window used to obtain the image. What should you evaluate on the system?

    A) registration accuracy

  • 7

    using the third waveform place the first cursor used to begin the resistive index measurement?

    green pointer

  • 8

    which of the following characteristics of an LCD monitor determines the spatial resolution of a 2-D image

    C) number of pixels

  • 9

    which of the following is/are responsible for a significant drop and pressure and damped pulsatility of arterial flow to allow for consistent oxygen and nutrient exchange

    C) arterioles

  • 10

    The Doppler tracing demonstrates electrical noise. How can you reduce or eliminate the artifact?

    C) increase the wall filter settings

  • 11

    When using a 3-6 MHz transducer which frequency will offer the best penetration

    A) 3 MHZ

  • 12

    what system control can reduce the appearance of clutter on a Color Doppler image

    D) decreasing color priority

  • 13

    which of the following parameters will change when the sonographer decreases the imaging depth?

    A) increased PRF

  • 14

    why is there no color flow displayed in the right hepatic vein?

    B) the blood flow is perpendicular to the beam at a 90° angle and is undetectable

  • 15

    what can be done to reduce the mechanical index level during an exam?

    A) reduce output power

  • 16

    what type of transducer array has the fewest number of elements?

    C) annular array

  • 17

    if you change from a transducer with 40mm Crystal thickness to one with a 20mm Crystal thickness the frequency of the sound produced will

    B) double

  • 18

    The term ____ refers to when all layers of blood flow are moving at relatively the same speed

    C) Plug flow

  • 19

    which of the following will increase the spatial pulse length

    D) decreased transducer frequency

  • 20

    harmonic frequencies are generated

    B) as the soundwave travels through the medium

  • 21

    lobe artifacts

    B) always appear beside the actual structure on the image

  • 22

    which of the following imaging techniques demonstrate subtle changes in echogenicity and improves contrast resolution

    A

  • 23

    which of the arrows on the image demonstrate the pulse duration

    A

  • 24

    doppler shift is

    A) the difference between the transmitted frequency and the reflected frequency

  • 25

    why did the sonographer steer the ultrasound image during the thyroid biopsy?

    C) to make the ultrasound be more perpendicular to the long axis of the needle

  • 26

    which operator control can be used to adjust the image contrast

    C) dynamic range

  • 27

    Your department recently upgraded the display monitors from a 512x512 matrix to 1024x1024 matrix how will this affect the image displayed?

    C) improved contrast resolution

  • 28

    when the ultrasound beam is absorbed by the medium energy is lost in the form of

    B) heat

  • 29

    volume averaging artifact causes

    A) degraded contrast and spatial resolution

  • 30

    when a patient is supine, what is the hydrostatic pressure at the ankles?

    A) 0 mmHg

  • 31

    which of the following acronyms refers to the standard image files storage format used in medical facilities in the United States

    B) DICOM

  • 32

    which of the following is primarily responsible for the display of flow in Doppler imaging

    B) Rayleigh scattering

  • 33

    when evaluating a focal stenosis of an artery, where should you place the cursor to obtain the highest of velocity related to the stenosis?

    A) at the narrowest point in the vessel or immediately distal to the focal point of the stenosis

  • 34

    for color flow Doppler, flow that is perpendicular to the ultrasound beam will be presented by the color

    D) black

  • 35

    A ____ MHz transducer will have the thinnest element

    D) 12

  • 36

    according to the attached color map, what color will the blood be demonstrated that is moving away from the probe at 30 cm/s and is highly turbulent?

    B) green

  • 37

    The vertical axis on the M-mode display represents the

    D) depth of the reflector

  • 38

    as more reflections occur with reverberation, they each become ______ and are placed ____ on the image

    D) weaker, deeper

  • 39

    increasing the color Doppler sample size will cause

    C) the frame rate to decrease

  • 40

    if the sonographer increases the size of the field of view, the frame rate will

    B) decrease

  • 41

    which of the following is true regarding annular arrays and linear arrays

    C) annular array must be mechanically steered linear arrays use electronic steering

  • 42

    which of the following will allow for display of the most shades of gray on the image?

    A) large pixel wide with 24 bits / pixel

  • 43

    pulse inversion imaging improves ____ while degrading _____

    A) spatial resolution, temporal resolution

  • 44

    Rayleigh scatter increases with

    D) increasing probe frequency

  • 45

    which of the following is related to the appearance of Rouleaux formation on the image

    D) slow moving blood flow

  • 46

    Which of the following will improve contrast resolution?

    D) coded excitation

  • 47

    which of the following will lead to more color displayed in real time in the abdominal aorta

    D) increase persistence

  • 48

    The wave form demonstrated was taken from a normal posterior tibial artery in the left leg which of the following statements is true regarding the tracing

    D) the wall filter is set too high, which is removing flow information from the tracing

  • 49

    as a pulse travels through a medium the amplitude of the pulse

    C) decreases

  • 50

    The unit for period of a diagnostic ultrasound wave is

    A) microsecond

  • 51

    pulse echo systems use strength and ____ of the received signal to create the grayscale image. Magnitude and _____ of the received signal are used to create the Doppler display.

    A) time of flight, direction

  • 52

    A 7 MHz transducer emits a range of frequencies between 4 MHz and 10 MHz. What is the bandwidth of the transducer?

    A) 6 MHz

  • 53

    which of the following correctly describes when to remove personal protective equipment after completing an ultrasound exam on a patient with Covid

    B) remove everything but the respirator before leaving the patient care area

  • 54

    during refraction, if the angle of the wave transmission increases as it enters the second media then the new media has ____ propagation speed, then the first media

    B) a higher

  • 55

    which of the following would cause artifactual debris within a simple cyst?

    C) short distance from the transducer

  • 56

    which of the following instrument controls does the sonographer use to adjust the amplitude of a reflected of sound wave?

    A) receiver gain

  • 57

    Which of the following machine settings will improve the attached image?

    A) activate electronic steering

  • 58

    range resolution is a primary advantage of

    A) PW Doppler over CW Doppler

  • 59

    if the number of ultrasound pulses per scan line increases

    D) the color packet size will increase

  • 60

    The term ____ is described as the filling in of the spectral window on a Doppler tracing that is caused by turbulence

    A) spectral broadening

  • 61

    which of the following should be increased when evaluating Venous flow with color Doppler

    B) color priority

  • 62

    which image demonstrates refractive shadowing

    D

  • 63

    Young’s modulus is used to determine what is displayed on the image during

    B) elastography

  • 64

    which of the following tissue interfaces will cause the greatest amount of spectral reflection

    C) liver parenchyma- diaphragm

  • 65

    which of the following transducers can be used to safely scan the patient

    D) Betadine infiltration of the matching layer

  • 66

    which of the following correctly describes a variance color map

    D) flow that demonstrates a Reynolds number greater than 2000 on color Doppler will most likely be displayed as green color with a variance map

  • 67

    which of the following are disadvantages of power Doppler

    A) Slow frame rates and flash artifacts

  • 68

    The frequency of the transducer is increased from 2.5 MHz to 10 MHz. What happened to the wavelength?

    A) decreased to 1/4 original wavelength

  • 69

    an area of high pressure and particle density on a pressure wave is referred to as a __[[

    D) compression

  • 70

    what is the primary advantage of power Doppler?

    D) power Doppler is more sensitive than color Doppler

  • 71

    what is the best way to adjust the console controls to eliminate the Doppler artifact

    B) raise the baseline

  • 72

    The linear transducer you are using has 7-5MHz printed on the side of the housing what probe characteristic is this?

    A) bandwidth

  • 73

    an advantage of virtual beam forming over traditional pulse echo instrumentation is

    C) no transmit focusing needed

  • 74

    if a renal artery, Doppler exam demonstrates normal flow and normal flow is identified on angiography evaluation the ultrasound results described as

    C) true negative

  • 75

    if the patient being evaluated has a known cardiac arrhythmia, how would you adjust the Doppler controls to best display the arrhythmia?

    C) reduce the sweep speed

  • 76

    if the Doppler cursor angle is underestimated, the velocity of flow will be

    D) underestimated

  • 77

    which system component improves lateral resolution

    B) pulser

  • 78

    which of the following Doppler measurement requires the weight form to be traced from start of systole to the end of diastole

    B) pulsatility index

  • 79

    A wave that oscillates at 40 cycles per second has a frequency of

    A) 40 Hz

  • 80

    what is the term used for unwanted Doppler display patterns typically caused by structure motion or breathing?

    C) clutter

  • 81

    which of the following system functions allow the linear transducer to offer a trapezoidal field of view

    C) electronic steering

  • 82

    to increase the amplitude of the ultrasound pulse produced by transducer

    B) the voltage amplitude from the pulser must increase

  • 83

    virtual beam forming significantly improves all types of resolution compared to pulse echo imaging except

    D) axial resolution

  • 84

    which of the following describes the best way to improve the display of flow information on the waveform

    D) decrease maximum velocity of the Doppler scale to 0.70 m/s

  • 85

    what leads to the increase propagation speed of sound in the media in which it travels

    D) increased stiffness

  • 86

    lateral resolution is best at what location in the beam

    A) focal point

  • 87

    which of the following adjustments will improve temporal resolution on color Doppler

    C) decease sample size

  • 88

    ultrasound can potentially harmful to a fetus if the examination raises the temperature in the womb to a temperature greater than ____ celsius

    B) 41 degrees

  • 89

    The AIUM has stated that there have been no confirm reports of thermal bioeffects to living mammals with ultrasound exposure if the temperature rise and tissue is less than

    A) 2° Celsius

  • 90

    while scanning an obese patient, you apply color Doppler to the aorta. when you adjust the placement of the box there is a display between your adjustment and the box moving on the image how can you correct this?

    C) activate write magnification over the area of interest

  • 91

    which arrow indicates where the end diastolic velocity should be measured

    D) green

  • 92

    which of the following is an abnormality that would lead to increase in the Reynolds number

    C) stenosis of the vessel

  • 93

    The rectus abdominis muscles are commonly associated with what type of artifact

    D) refraction

  • 94

    what artifact is demonstrated on the ultrasound image posterior to the gallbladder?

    B) clean posterior shadowing

  • 95

    which of the following correctly describes the positive predictive value (PPV) of a testing technique

    D) if the test result is positive PPV is the probability that the patient actually has the disease

  • 96

    according to the attached color map, what color will the blood be demonstrated that is turbulent and moving toward the probe at 60 cm/s

    C) green

  • 97

    which of the following describes the preferred placement of the focal zone on standard imaging

    C) just below the area of interest on the image

  • 98

    increase damping improves axial resolution but decreases ___

    A) sensitivity

  • 99

    which of the following artifacts can NOT be corrected by increasing the wall filter setting

    A) aliasing artifact

  • 100

    which of the following will improve the signal-to-noise ratio of the image?

    C) use of ultrasound contrast