which of the following is a limitation of spatial compounding?

which mathematical term is used to describe a number that, when multiplied by another number, results in a product of one?

all of the following statements describe the Reynolds’s number except?

which of the following statements accurately describes a characteristic of power Doppler imaging?

m-mode in echocardiography displays the movement of the myocardium allowing for accurate and real-time measurements of wall thickness, which axis is used to display time?

in B-mode images, which axis is used to display the depth of a reflector?

which of the following best describes how much resistance an ultrasound beam encounters as it passes through a medium?

which of the following terms is defined as the amount of force per unit area?

in which region of a sound wave traveling through a medium is the pressure and density lower?

which type of wave propagates in a direction perpendicular to the disturbance of the medium

what is the SI unit of pressure which is used in ultrasound?

which of the following is a medium through which sound waves propagate?

which of the following represents one of the fundamental assumptions in the design of ultrasound imaging systems?

in a ultrasonics wave traveling through soft tissue, the particles vibrate in the same direction as the wave’s movement. what is the most accurate way to characterize this type of wave?

which primary parameters are included in the acoustic variables that help identify a sound wave?

which of the following is expressed as mass divided by volume?

which unit is commonly used to express the density of a material, defined as the amount of mass per unit volume?

what is the term used to describe the area of high pressure and density in a sound wave as it travels through a medium?

what is used to measure a substance’s resistance to compression?

what happens to the speed of sound in a medium if the density of the medium increases?

what type of interference occurs when in-phase waves combine to form a wave with an amplitude larger than each individual wave?

what type of mechanical wave propagates along or through a medium by particle-to-particle interaction?

which of the following is expressed in hertz (Hz) and signifies one complete cycle per second?

which term is used to describe the effect of sound waves on biological tissue that can be measured?

which type of interference results when out-of-phase waves combine to form a wave with an amplitude smaller than each wave?

which of the following is determined by the medium and is not affected by the frequency or wavelength of the sound?

what term is used to describe the phenomenon when two ultrasound waves encounter each other and result in a disturbance of the wave pattern?

what is the name of the measurement in ultrasound imaging that is calculated as the difference between the highest and Lowest points of a sound wave in a given waveform?

what term refers to the measurement of the distance from the baseline to the peak of an ultrasound wave?

in a periodic wave, if the frequency increases, which of the following parameters would decrease in response?

what term is used to describe the rate at which energy is consumed or work is carried out?

what are the qualities that describe the loudness or strength of a sound wave?

what are the qualities that describe the loudness or strength of a sound wave?

if the sonographer increases the depth of the image to visualize the deeper structure, what happened to the frequency of the ultrasound wave?

what term represents the measure of power per unit area?

what term best describes the influence tissue has on a sound wave traveling through it?

which of the follow is directly proportional to the intensity of a sound wave?

which of the following best describes the speed of sound in soft tissue?

an ultrasound wave initially has an amplitude of 2.5 units. Due to a sudden change in conditions, it’s amplitude increases to 5.0 units. How does this change affect the amount of energy carried by the ultrasound wave?

how does the speed of sound traveling through a medium change as the stiffness of the medium increases?

which of the following best describes the relationship between the frequency and period of a waveform in soft tissue?

which is the most commonly used to measure frequency in ultrasound imaging?

which of the following produces better axial resolution and improved overall image quality?

all of the following are assumptions a commercial medical ultrasound machine makes when converting the returning echoes into a diagnostic image, EXCEPT?

if the power of a beam increases by a factor of the 3 and the area remains unchanged, what will happen to the intensity of the beam?

a sonographer is performing an ultrasound exam with a transducer that emits a sound wave with an initial amplitude of 1 mm. if the sonographer made an adjustment so that the amplitude of the triples, which of the following will increase by a factor of 9?

if the distance between the transducer and reflector is doubled, what happens to the sound beam’s intensity?

what is the frequency range that is typically associated with infrasound?

what is the typical unit of measurement for intensity?

if continuous and pulsed waves have equal spatial peak temporal peak (SPTP) intensities, which of the best describes the spatial peak temporal aversion (SPTA) intensity?

which of the following statements accurately describes a sonographer’s ability to control the intensity of an ultrasound beam?

which of the following statements accurately describes a sonographer’s ability to adjust the power of an ultrasound beam during imaging?

which of the following statements accurately describes the characteristics of low frequency transducers?

in ultrasound imaging, what unit measures the frequency of oscillations , indicating the number of complete vibration cycles occurring in one second?

when an ultrasound wave is created, which of the following determines its period?

which of the following is inversely related to period?

which of the following parameters determines the power of an ultrasound wave?

what is the standard unit of measurement for the power of a sound wave in ultrasound imaging?

arrange the following mediums in order from fastest to slowest, based on the rate at which sound travels through them: air , bone, fat , lung, soft tissue, tendon

how does the wavelength of ultrasound waves relate to their frequency, particularly when comparing low- frequency and high -frequency waves?

in a medium where the frequency of a sound wave remains constant, how is the wavelength of a sound wave related to the speed of sound?

what term is used to describe the duration of time required for one full cycle of vibration to pass through a specific point?

if the amplitude of a sound wave is increased by a factor of two, and all other factors remain constant, what will happen to the intensity of the sound wave?

what parameter determines the frequency of ultrasound waves?

what is displayed along the y-axis in a-mode ultrasound?

which parameter is primarily influenced by the properties of the medium through which the sound waves propagate?

what is the average propagation speed of sound in soft tissue?

what measurements are needed to determine the wavelength of an ultrasound wave as it propagates through a medium?

when sound travels from a medium with a different speed of sound to another medium, which of the following changes?

how long is the wavelength of a 1 MHz ultrasound probe when scanning a soft tissue structure?

how long is the wavelength of a 2 MHz ultrasound probe when scanning a soft tissue structure?

what is the typical range of ultrasound transducer frequencies?

what is the minimum frequency of sound that is considered to be part of the ultrasound range?

when describing sound sound waves, what are the seven parameters that are used to quantify their properties?

which of the following parameters are used in pulsed wave ultrasound imaging?

which component is primarily responsible for determining the frequency, imputing power, intensity, and other properties of an ultrasound wave?

what is the range of frequencies that can typically be heard by humans?

what is the formula for calculating the wavelength in ultrasound imaging?

how much would the power of a sound wave increases if it’s amplitude were doubled?

which of the following is determined by the medium and the source?

a sonographer is performing an ultrasound exam and is having difficulty imaging a superficial structure due to poor resolution. which of the following changes would be most likely to improve the ability to image shallow depths and provide better resolution?

what change could a sonographer make to improve visualization of deeper structures during an ultrasound exam?

what is the term for distance travel by an ultrasound pulse during its transmission through a medium?

what is the term used to describe the number of pulses transmitted by an ultrasound transducer per unit time?

which of the following is defined as the time interval during which the ultrasound transducer emits an ultrasound pulse in ultrasound imaging?

what are the two parameters that determine the length of time a pulse is active and the distance it covers in one cycle in ultrasound imaging, respectively?

which type of pulse is typically utilized to attain increased imaging depth in ultrasound?

which type of pulses are typically used for shallow imaging depths in ultrasound?

What parameters should the operator adjust to affect the pulse repetition frequency in an ultrasound examination?

Ultrasound pulses consist of cycles of acoustic energy emitted by the transducer, interrupted by gaps of silence. Which of the following statements best describes the relationship between frequency and depth of penetration in ultrasound transmission?

What is the term used to describe the fraction or percentage of time during which an ultrasound transducer is actively transmitting pulses?

What is the technical term used to define the duration of time between the beginning of one ultrasound pulse and the beginning of the next pulse?

Which of the following emits ultrasound pulses continuously with a duty factor of 100%