Podcast
Questions and Answers
If a structure measures 0.005 meters, what is its equivalent measurement in millimeters?
If a structure measures 0.005 meters, what is its equivalent measurement in millimeters?
- 0.5 mm
- 0.05 mm
- 5 mm (correct)
- 50 mm
Which of the following correctly pairs a metric prefix with its corresponding exponent and meaning?
Which of the following correctly pairs a metric prefix with its corresponding exponent and meaning?
- Centi, $10^{-3}$, Thousandth
- Micro, $10^{-6}$, Millionth (correct)
- Kilo, $10^6$, Million
- Mega, $10^9$, Thousand
In a diagnostic ultrasound report, a sonographer notes a structure is 'hypoechoic.' While this term relates primarily to image brightness, which acoustic variable is most directly related to the creation of that image?
In a diagnostic ultrasound report, a sonographer notes a structure is 'hypoechoic.' While this term relates primarily to image brightness, which acoustic variable is most directly related to the creation of that image?
- Period
- Distance
- Density
- Pressure (correct)
What will happen to the wavelength if the frequency increases, assuming the propagation speed remains constant?
What will happen to the wavelength if the frequency increases, assuming the propagation speed remains constant?
A sound wave with a frequency of 15 kHz would be classified as:
A sound wave with a frequency of 15 kHz would be classified as:
If two in-phase waves with amplitudes of 0.3 Pa and 0.4 Pa, respectively, interfere constructively, what is the amplitude of the resulting wave?
If two in-phase waves with amplitudes of 0.3 Pa and 0.4 Pa, respectively, interfere constructively, what is the amplitude of the resulting wave?
Given the following materials, which would have the slowest propagation speed?
Given the following materials, which would have the slowest propagation speed?
You are using an ultrasound system that allows you to adjust several parameters. Which of the following adjustments would directly alter the intensity of the sound wave?
You are using an ultrasound system that allows you to adjust several parameters. Which of the following adjustments would directly alter the intensity of the sound wave?
What happens when two out-of-phase waves interfere?
What happens when two out-of-phase waves interfere?
In a sound wave, what is the relationship between compression and particle density?
In a sound wave, what is the relationship between compression and particle density?
A sound wave has a frequency of 15 Hz. Which category does this sound fall into?
A sound wave has a frequency of 15 Hz. Which category does this sound fall into?
If a sound wave completes 50 cycles in one second, what is its frequency?
If a sound wave completes 50 cycles in one second, what is its frequency?
What does the peak-to-peak amplitude of an acoustic variable represent?
What does the peak-to-peak amplitude of an acoustic variable represent?
If the SPTP intensity of an ultrasound wave is 100 $mW/cm^2$, and it undergoes attenuation resulting in an SPTA intensity that is one-tenth of the SPTP, what is the SPTA intensity?
If the SPTP intensity of an ultrasound wave is 100 $mW/cm^2$, and it undergoes attenuation resulting in an SPTA intensity that is one-tenth of the SPTP, what is the SPTA intensity?
An ultrasound wave traveling through soft tissue with a frequency of 5 MHz experiences an attenuation of 2.5 dB. How much will the intensity be reduced?
An ultrasound wave traveling through soft tissue with a frequency of 5 MHz experiences an attenuation of 2.5 dB. How much will the intensity be reduced?
Which of the parameters describes the rate of energy transfer in a sound wave?
Which of the parameters describes the rate of energy transfer in a sound wave?
How are intensity and amplitude related in the context of sound waves?
How are intensity and amplitude related in the context of sound waves?
Which of the following is NOT a process that contributes to attenuation of ultrasound waves?
Which of the following is NOT a process that contributes to attenuation of ultrasound waves?
What distinguishes ultrasound from audible sound?
What distinguishes ultrasound from audible sound?
What does a -10 dB change in intensity represent?
What does a -10 dB change in intensity represent?
An ultrasound beam initially has an intensity of $I_0$. After traveling through a medium, its intensity is measured to be $I_f = I_0 / 4$. Approximately how many dB has the wave attenuated?
An ultrasound beam initially has an intensity of $I_0$. After traveling through a medium, its intensity is measured to be $I_f = I_0 / 4$. Approximately how many dB has the wave attenuated?
Which transducer type would most likely result in a horizontal band of signal dropout at a specific depth within the image?
Which transducer type would most likely result in a horizontal band of signal dropout at a specific depth within the image?
A sonographer notices erratic steering and focusing issues on the ultrasound display. Which transducer type is most likely the cause?
A sonographer notices erratic steering and focusing issues on the ultrasound display. Which transducer type is most likely the cause?
If a single crystal malfunctions in a linear array transducer, what artifact is most likely to appear on the ultrasound image?
If a single crystal malfunctions in a linear array transducer, what artifact is most likely to appear on the ultrasound image?
Which steering technique is utilized by a mechanical transducer?
Which steering technique is utilized by a mechanical transducer?
What image shape would you expect from a vector array transducer?
What image shape would you expect from a vector array transducer?
Which of the following determines the spatial pulse length?
Which of the following determines the spatial pulse length?
What happens to the pulse repetition period (PRP) when the imaging depth is increased?
What happens to the pulse repetition period (PRP) when the imaging depth is increased?
A sonographer adjusts the depth of view. What parameter is directly changed by the ultrasound system?
A sonographer adjusts the depth of view. What parameter is directly changed by the ultrasound system?
What is the relationship between imaging depth and pulse repetition frequency (PRF)?
What is the relationship between imaging depth and pulse repetition frequency (PRF)?
Which of the following is true regarding pulse repetition frequency (PRF)?
Which of the following is true regarding pulse repetition frequency (PRF)?
What determines pulse repetition frequency?
What determines pulse repetition frequency?
If the sonographer decreases the depth of view, what happens to the listening time?
If the sonographer decreases the depth of view, what happens to the listening time?
How can a sonographer adjust the Pulse Repetition Period?
How can a sonographer adjust the Pulse Repetition Period?
A linear phased array transducer produces which image shape?
A linear phased array transducer produces which image shape?
Which transducer type uses mechanical steering but electronic focusing?
Which transducer type uses mechanical steering but electronic focusing?
Which type of transducer is most likely to exhibit vertical line dropout as a crystal defect?
Which type of transducer is most likely to exhibit vertical line dropout as a crystal defect?
A sonographer adjusts the control to steer the ultrasound beam. What is the sonographer manipulating?
A sonographer adjusts the control to steer the ultrasound beam. What is the sonographer manipulating?
What best explains the function of a beam former in phased array systems?
What best explains the function of a beam former in phased array systems?
What occurs during dynamic receive focusing?
What occurs during dynamic receive focusing?
If a sonographic image shows poor steering and focusing, which transducer type is most likely being used?
If a sonographic image shows poor steering and focusing, which transducer type is most likely being used?
What is a key difference in the crystal configuration between a linear switched array and a linear phased array transducer?
What is a key difference in the crystal configuration between a linear switched array and a linear phased array transducer?
In pulsed wave ultrasound, what does the duty factor represent?
In pulsed wave ultrasound, what does the duty factor represent?
What is the duty factor in continuous wave (CW) Doppler?
What is the duty factor in continuous wave (CW) Doppler?
A sonographer decreases the imaging depth. How does this affect the duty factor, assuming all other parameters remain constant?
A sonographer decreases the imaging depth. How does this affect the duty factor, assuming all other parameters remain constant?
What is the range of duty factors typically encountered in clinical imaging?
What is the range of duty factors typically encountered in clinical imaging?
What does 'spatial' refer to in the context of ultrasound intensities?
What does 'spatial' refer to in the context of ultrasound intensities?
Which statement best describes temporal peak intensity ($I_{TP}$)?
Which statement best describes temporal peak intensity ($I_{TP}$)?
An ultrasound pulse has a pulse duration of 5 microseconds and a pulse repetition period of 1 millisecond. What is the duty factor?
An ultrasound pulse has a pulse duration of 5 microseconds and a pulse repetition period of 1 millisecond. What is the duty factor?
What intensities are derived from the most intense half cycle in the pulse?
What intensities are derived from the most intense half cycle in the pulse?
If a wave's intensity doubles, what is the approximate change in decibels?
If a wave's intensity doubles, what is the approximate change in decibels?
What is the period of a 5 MHz ultrasound wave?
What is the period of a 5 MHz ultrasound wave?
If the initial power of an ultrasound wave is 4 W, and after passing through a tissue it is reduced to 1 W, what is the power reduction in decibels?
If the initial power of an ultrasound wave is 4 W, and after passing through a tissue it is reduced to 1 W, what is the power reduction in decibels?
What happens to the wavelength of an ultrasound wave if both the frequency and propagation speed are doubled?
What happens to the wavelength of an ultrasound wave if both the frequency and propagation speed are doubled?
What is the equivalent of 5000 millimeters in meters using the metric system?
What is the equivalent of 5000 millimeters in meters using the metric system?
Given a sound wave traveling from soft tissue to bone, how will the propagation speed change, and what effect does this have on the wavelength (assuming constant frequency)?
Given a sound wave traveling from soft tissue to bone, how will the propagation speed change, and what effect does this have on the wavelength (assuming constant frequency)?
If two identical in-phase waves, each with an amplitude of 1.5 Pa, interfere constructively, what is the amplitude of the resulting wave?
If two identical in-phase waves, each with an amplitude of 1.5 Pa, interfere constructively, what is the amplitude of the resulting wave?
Which of the following scenarios would result in destructive interference?
Which of the following scenarios would result in destructive interference?
Given two ultrasound waves traveling through the same soft tissue, with wave A at 5 MHz and wave B at 10 MHz, how will their attenuation coefficients compare?
Given two ultrasound waves traveling through the same soft tissue, with wave A at 5 MHz and wave B at 10 MHz, how will their attenuation coefficients compare?
If the incident intensity of an ultrasound beam is 2 $mW/cm^2$, and the reflected intensity is 0.5 $mW/cm^2$, what is the transmitted intensity, assuming no other losses?
If the incident intensity of an ultrasound beam is 2 $mW/cm^2$, and the reflected intensity is 0.5 $mW/cm^2$, what is the transmitted intensity, assuming no other losses?
In the context of ultrasound imaging, which type of scattering is most sensitive to frequency changes?
In the context of ultrasound imaging, which type of scattering is most sensitive to frequency changes?
An ultrasound wave is traveling through a medium with a density of 1000 $kg/m^3$ and a propagation speed of 1540 $m/s$. What is the acoustic impedance of this medium?
An ultrasound wave is traveling through a medium with a density of 1000 $kg/m^3$ and a propagation speed of 1540 $m/s$. What is the acoustic impedance of this medium?
If an ultrasound beam strikes a boundary between two tissues at an angle of 90 degrees, what is this incidence called?
If an ultrasound beam strikes a boundary between two tissues at an angle of 90 degrees, what is this incidence called?
Which transducer type employs both mechanical steering and electronic focusing?
Which transducer type employs both mechanical steering and electronic focusing?
In a phased array system, what aspect of the electronic pattern is manipulated to achieve focusing of the sound beam?
In a phased array system, what aspect of the electronic pattern is manipulated to achieve focusing of the sound beam?
Which of the following describes the image shape produced by a linear sequential (switched) array transducer?
Which of the following describes the image shape produced by a linear sequential (switched) array transducer?
What is the primary function of the beam former in a phased array ultrasound system?
What is the primary function of the beam former in a phased array ultrasound system?
In a phased array system, what electronic pattern is manipulated to achieve steering of the sound beam?
In a phased array system, what electronic pattern is manipulated to achieve steering of the sound beam?
A horizontal band of signal dropout is observed in an ultrasound image. Which type of transducer is most likely the cause?
A horizontal band of signal dropout is observed in an ultrasound image. Which type of transducer is most likely the cause?
What type of image shape is generated by a vector array transducer?
What type of image shape is generated by a vector array transducer?
A sonographer is using a linear switched array transducer and notices a vertical line dropout on the image. What is the most likely cause?
A sonographer is using a linear switched array transducer and notices a vertical line dropout on the image. What is the most likely cause?
A sonographer is using a transducer that creates a wider beam perpendicular to the imaging plane, which degrades image quality. Which transducer technology would MOST improve this issue?
A sonographer is using a transducer that creates a wider beam perpendicular to the imaging plane, which degrades image quality. Which transducer technology would MOST improve this issue?
When comparing intensities, which statement accurately reflects their relative magnitudes?
When comparing intensities, which statement accurately reflects their relative magnitudes?
A sonographer adjusts the ultrasound system to apply higher voltages to the central elements of the transducer and lower voltages to the outer elements. What is the MOST likely goal of this adjustment?
A sonographer adjusts the ultrasound system to apply higher voltages to the central elements of the transducer and lower voltages to the outer elements. What is the MOST likely goal of this adjustment?
An ultrasound image exhibits artifacts caused by off-axis sound beams. Which of the following strategies would be MOST effective in reducing these artifacts when using an array transducer?
An ultrasound image exhibits artifacts caused by off-axis sound beams. Which of the following strategies would be MOST effective in reducing these artifacts when using an array transducer?
A quality assurance test reveals the presence of side lobes in the far field of a single-element transducer. What is the PRIMARY consequence of these side lobes on the ultrasound image?
A quality assurance test reveals the presence of side lobes in the far field of a single-element transducer. What is the PRIMARY consequence of these side lobes on the ultrasound image?
Which of the following is MOST accurate regarding slice thickness?
Which of the following is MOST accurate regarding slice thickness?
What is the Beam Uniformity Coefficient (SP/SA factor) and what does it indicate about the ultrasound beam?
What is the Beam Uniformity Coefficient (SP/SA factor) and what does it indicate about the ultrasound beam?
In the context of pulsed wave ultrasound, what distinguishes Pulse Average Intensity (Ipa) from Temporal Average Intensity (Ita)?
In the context of pulsed wave ultrasound, what distinguishes Pulse Average Intensity (Ipa) from Temporal Average Intensity (Ita)?
If a continuous wave and a pulsed wave ultrasound beam have the same Spatial Peak, Temporal Peak (SPTP) intensities, which of the following statements is correct regarding their Spatial Peak, Temporal Average (SPTA) intensities?
If a continuous wave and a pulsed wave ultrasound beam have the same Spatial Peak, Temporal Peak (SPTP) intensities, which of the following statements is correct regarding their Spatial Peak, Temporal Average (SPTA) intensities?
Which statement accurately describes the relationship between the Duty Factor and ultrasound intensities?
Which statement accurately describes the relationship between the Duty Factor and ultrasound intensities?
When comparing the Temporal Peak Intensity (Itp) and the Im Intensity, how is the Im Intensity defined?
When comparing the Temporal Peak Intensity (Itp) and the Im Intensity, how is the Im Intensity defined?
Why is the Spatial Peak Temporal Average (SPTA) intensity considered the most relevant intensity when assessing potential bioeffects on tissue?
Why is the Spatial Peak Temporal Average (SPTA) intensity considered the most relevant intensity when assessing potential bioeffects on tissue?
Assuming that spatial peak intensity remains constant, what changes would lead to an increase in the pulse-average intensity?
Assuming that spatial peak intensity remains constant, what changes would lead to an increase in the pulse-average intensity?
Given the following ultrasound intensities: SPTP, SATA, SPTA, SPPA, and $I_m$, which accurately represents their relationship from highest to lowest?
Given the following ultrasound intensities: SPTP, SATA, SPTA, SPPA, and $I_m$, which accurately represents their relationship from highest to lowest?
An ultrasound wave's intensity is reduced to one-tenth of its original value after traveling through a tissue. What is the equivalent change in decibels (dB)?
An ultrasound wave's intensity is reduced to one-tenth of its original value after traveling through a tissue. What is the equivalent change in decibels (dB)?
If the intensity of an ultrasound wave doubles, what is the approximate change in decibels?
If the intensity of an ultrasound wave doubles, what is the approximate change in decibels?
Which of the following is NOT a process that contributes to the attenuation of ultrasound waves in tissue?
Which of the following is NOT a process that contributes to the attenuation of ultrasound waves in tissue?
An ultrasound wave with a frequency of 5 MHz is traveling through soft tissue. According to the rule of thumb, what is the approximate attenuation coefficient?
An ultrasound wave with a frequency of 5 MHz is traveling through soft tissue. According to the rule of thumb, what is the approximate attenuation coefficient?
What determines the spatial pulse length (SPL)?
What determines the spatial pulse length (SPL)?
If the number of cycles in a pulse increases while the wavelength remains constant, what happens to the spatial pulse length?
If the number of cycles in a pulse increases while the wavelength remains constant, what happens to the spatial pulse length?
Which of the following adjustments made by the sonographer directly impacts the pulse repetition period (PRP)?
Which of the following adjustments made by the sonographer directly impacts the pulse repetition period (PRP)?
If the sonographer increases the imaging depth, what happens to the pulse repetition period (PRP)?
If the sonographer increases the imaging depth, what happens to the pulse repetition period (PRP)?
How does decreasing the imaging depth affect the listening time in ultrasound imaging?
How does decreasing the imaging depth affect the listening time in ultrasound imaging?
What is the definition of Pulse Repetition Frequency (PRF)?
What is the definition of Pulse Repetition Frequency (PRF)?
How does increasing the imaging depth affect the pulse repetition frequency (PRF)?
How does increasing the imaging depth affect the pulse repetition frequency (PRF)?
Which action would result in the highest pulse repetition frequency (PRF)?
Which action would result in the highest pulse repetition frequency (PRF)?
What is the duty factor in pulsed ultrasound primarily determined by?
What is the duty factor in pulsed ultrasound primarily determined by?
If the pulse duration remains constant but the pulse repetition period is doubled, what happens to the duty factor?
If the pulse duration remains constant but the pulse repetition period is doubled, what happens to the duty factor?
In clinical imaging, what is the typical range of duty factors encountered?
In clinical imaging, what is the typical range of duty factors encountered?
Which of the following changes would increase the duty factor, assuming all other parameters remain constant?
Which of the following changes would increase the duty factor, assuming all other parameters remain constant?
In the context of ultrasound intensities, what does 'spatial' refer to?
In the context of ultrasound intensities, what does 'spatial' refer to?
Which transducer type would MOST likely exhibit a horizontal band of signal dropout at a specific depth if a crystal malfunctions?
Which transducer type would MOST likely exhibit a horizontal band of signal dropout at a specific depth if a crystal malfunctions?
A sonographer is using a transducer that creates a sector-shaped image. Which of the following transducer types could potentially be the one in use?
A sonographer is using a transducer that creates a sector-shaped image. Which of the following transducer types could potentially be the one in use?
What is a key difference between 'temporal peak intensity' and other temporal intensities?
What is a key difference between 'temporal peak intensity' and other temporal intensities?
What does $I_{max}$ (Im) represent in the context of peak intensities?
What does $I_{max}$ (Im) represent in the context of peak intensities?
A sonographer notices that the ultrasound image is missing information from top to bottom, appearing as a vertical line dropout. Which type of transducer is MOST likely the cause?
A sonographer notices that the ultrasound image is missing information from top to bottom, appearing as a vertical line dropout. Which type of transducer is MOST likely the cause?
An ultrasound system displays an image with erratic steering and focusing. Which transducer type is MOST likely responsible for this issue?
An ultrasound system displays an image with erratic steering and focusing. Which transducer type is MOST likely responsible for this issue?
Which intensity measurement is often considered most relevant for potential bioeffects because it accounts for both spatial and temporal aspects of the ultrasound beam?
Which intensity measurement is often considered most relevant for potential bioeffects because it accounts for both spatial and temporal aspects of the ultrasound beam?
What steering technique is utilized by an annular phased array transducer?
What steering technique is utilized by an annular phased array transducer?
Given two ultrasound waves traveling through different media, one through soft tissue and the other through bone, which of the following statements is MOST accurate regarding their attenuation coefficients, assuming they have the same frequency?
Given two ultrasound waves traveling through different media, one through soft tissue and the other through bone, which of the following statements is MOST accurate regarding their attenuation coefficients, assuming they have the same frequency?
An ultrasound wave encounters a boundary between two media with different acoustic impedances at an oblique angle. Which of the following is MOST likely to occur at the boundary?
An ultrasound wave encounters a boundary between two media with different acoustic impedances at an oblique angle. Which of the following is MOST likely to occur at the boundary?
The total attenuation of an ultrasound wave traveling through a tissue is found to be 15 dB. If the attenuation coefficient for that tissue at the given frequency is 3 dB/cm, what is the path length the wave traveled?
The total attenuation of an ultrasound wave traveling through a tissue is found to be 15 dB. If the attenuation coefficient for that tissue at the given frequency is 3 dB/cm, what is the path length the wave traveled?
How does increasing the frequency of the transducer affect the amount of Rayleigh scattering?
How does increasing the frequency of the transducer affect the amount of Rayleigh scattering?
Given two different media, Medium A with a high attenuation rate and Medium B with a low attenuation rate, which of the following statements is true regarding the half-value layer (HVL)?
Given two different media, Medium A with a high attenuation rate and Medium B with a low attenuation rate, which of the following statements is true regarding the half-value layer (HVL)?
Which of the following intensities is most closely associated with potential tissue heating during ultrasound procedures?
Which of the following intensities is most closely associated with potential tissue heating during ultrasound procedures?
What does a Beam Uniformity Coefficient (SP/SA factor) of 3.0 indicate about an ultrasound beam?
What does a Beam Uniformity Coefficient (SP/SA factor) of 3.0 indicate about an ultrasound beam?
In pulsed wave ultrasound, how does the Pulse Average Intensity (Ipa) differ from the Temporal Average Intensity (Ita)?
In pulsed wave ultrasound, how does the Pulse Average Intensity (Ipa) differ from the Temporal Average Intensity (Ita)?
If a continuous wave and a pulsed wave ultrasound beam have the same Spatial Peak, Temporal Peak (SPTP) intensities, which of the following relationships is correct?
If a continuous wave and a pulsed wave ultrasound beam have the same Spatial Peak, Temporal Peak (SPTP) intensities, which of the following relationships is correct?
How is the Duty Factor related to the various measures of ultrasound intensity?
How is the Duty Factor related to the various measures of ultrasound intensity?
Which of the following is true regarding the Im intensity?
Which of the following is true regarding the Im intensity?
If the pulse duration of an ultrasound system is increased while keeping the spatial peak intensity constant, what effect does this have on the pulse-average intensity?
If the pulse duration of an ultrasound system is increased while keeping the spatial peak intensity constant, what effect does this have on the pulse-average intensity?
Which intensity value is the highest?
Which intensity value is the highest?
Flashcards
Giga
Giga
One billion
Mega
Mega
One million
Y-axis
Y-axis
The vertical axis in a graph, typically representing depth in ultrasound.
X-axis
X-axis
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Acoustic variables
Acoustic variables
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Acoustic parameters
Acoustic parameters
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Infrasound
Infrasound
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In-phase waves and constructive interference
In-phase waves and constructive interference
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SPTP Intensity
SPTP Intensity
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SATP Intensity
SATP Intensity
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SATA Intensity
SATA Intensity
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Attenuation
Attenuation
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Attenuation Processes
Attenuation Processes
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Out-of-Phase Waves
Out-of-Phase Waves
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Mechanical Transducer Failure
Mechanical Transducer Failure
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Linear/Convex Array Failure
Linear/Convex Array Failure
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Destructive Interference
Destructive Interference
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Phased Array Failure
Phased Array Failure
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Compression (Sound)
Compression (Sound)
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Rarefaction (Sound)
Rarefaction (Sound)
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Annular Phased Array Failure
Annular Phased Array Failure
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Bigness Parameters (Sound)
Bigness Parameters (Sound)
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Convex Array
Convex Array
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Cycle (Acoustics)
Cycle (Acoustics)
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Period (Acoustics)
Period (Acoustics)
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Frequency (Acoustics)
Frequency (Acoustics)
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Spatial Pulse Length (SPL)
Spatial Pulse Length (SPL)
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SPL & Wavelength
SPL & Wavelength
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Pulse Repetition Period (PRP)
Pulse Repetition Period (PRP)
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Is PRP Adjustable?
Is PRP Adjustable?
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Depth & PRP Relationship
Depth & PRP Relationship
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Pulse Repetition Frequency (PRF)
Pulse Repetition Frequency (PRF)
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Depth & PRF Relationship
Depth & PRF Relationship
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Is PRF Adjustable?
Is PRF Adjustable?
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Mechanical Transducer
Mechanical Transducer
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Linear Sequential/Switched Transducer
Linear Sequential/Switched Transducer
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Linear Phased Array Transducer
Linear Phased Array Transducer
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Annular Phased Array Transducer
Annular Phased Array Transducer
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Convex Transducer
Convex Transducer
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Vector Transducer
Vector Transducer
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Beam Former
Beam Former
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Dynamic Receive Focusing
Dynamic Receive Focusing
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Deci
Deci
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Centi
Centi
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Milli
Milli
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Micro
Micro
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Nano
Nano
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Pressure
Pressure
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Density
Density
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Audible Sound
Audible Sound
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Half Value Layer
Half Value Layer
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Rayleigh Scattering
Rayleigh Scattering
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Impedance
Impedance
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Normal Incidence
Normal Incidence
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Pulse Average Intensity (Ipa)
Pulse Average Intensity (Ipa)
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Temporal Average Intensity (Ita)
Temporal Average Intensity (Ita)
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Spatial Peak Intensity (Isp)
Spatial Peak Intensity (Isp)
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Spatial Average Intensity (Isa)
Spatial Average Intensity (Isa)
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Beam Uniformity Coefficient (SP/SA Factor)
Beam Uniformity Coefficient (SP/SA Factor)
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Duty Factor
Duty Factor
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Continuous Wave Intensity Relationship
Continuous Wave Intensity Relationship
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Temporal Peak Intensity (Itp)
Temporal Peak Intensity (Itp)
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Adjusting PRF
Adjusting PRF
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Duty Factor Units
Duty Factor Units
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Duty Factor Formula
Duty Factor Formula
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Typical Duty Factor Range
Typical Duty Factor Range
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Spatial Intensity
Spatial Intensity
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Peak Intensity
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Temporal Intensity
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Slice Thickness
Slice Thickness
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1 ½ Dimensional Array Transducers
1 ½ Dimensional Array Transducers
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Side Lobes
Side Lobes
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Grating Lobes
Grating Lobes
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Reducing Grating Lobes
Reducing Grating Lobes
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Mechanical Transducer Image
Mechanical Transducer Image
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Linear Sequential Array Image
Linear Sequential Array Image
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Linear Phased Array Image
Linear Phased Array Image
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Annular Phased Array Image
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Convex Array Image
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Vector Array Image
Vector Array Image
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Beam Former Function
Beam Former Function
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Receive Focusing
Receive Focusing
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SPL and Wavelength Relationship
SPL and Wavelength Relationship
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Depth and PRP
Depth and PRP
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Depth and PRF Relationship
Depth and PRF Relationship
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Attenuation (Sound)
Attenuation (Sound)
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Attenuation Factors
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Decibel (dB)
Decibel (dB)
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PRF and Depth Button
PRF and Depth Button
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Maximum Duty Factor
Maximum Duty Factor
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Minimum Duty Factor
Minimum Duty Factor
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Duty Factor Equation
Duty Factor Equation
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Spatial vs. Temporal
Spatial vs. Temporal
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Imax/TP
Imax/TP
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Amplitude
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Linear Array Arrangement
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Annular Array Arrangement
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Attenuation (dB)
Attenuation (dB)
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Pulse Average Intensity (PA or Ipa)
Pulse Average Intensity (PA or Ipa)
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Temporal Average Intensity (TA or Ita)
Temporal Average Intensity (TA or Ita)
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Spatial Peak, Temporal Peak (SPTP)
Spatial Peak, Temporal Peak (SPTP)
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Spatial Average, Temporal Peak (SATP)
Spatial Average, Temporal Peak (SATP)
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Spatial Average, Temporal Average (SATA)
Spatial Average, Temporal Average (SATA)
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SP/SA Factor
SP/SA Factor
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Duty Factor Definition
Duty Factor Definition
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Continuous Wave Intensity
Continuous Wave Intensity
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Study Notes
Sound Wave Absorption
- A soundwave can be absorbed by a wall.
- A soundwave can pass through a wall (transmission).
Components of a Transducer
- Electrical Leads: provide electrical connection to the piezoelectric element.
- Backing Material: dampens the ringing of the piezoelectric element, improving axial resolution.
- Wear Plate: protects the piezoelectric element from damage.
- Piezoelectric Element: converts electrical energy into mechanical energy (sound) and vice versa, also known as crystal.
- Sound Field: the region of space occupied by a sound wave.
- Near Field: the region of the sound field closest to the transducer.
- Far Field: the region of the sound field farthest from the transducer. </existing_notes>
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Description
Test your knowledge of ultrasound physics. Questions cover metric conversions, acoustic variables, wave properties, and propagation speed. Perfect for students and professionals in sonography and medical imaging.
