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SPI Midterm| 100 questions| with complete solutions
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What is the main disadvantage of continuous wave (Pedof) transducers? CORRECT ANSWERS: Depth ambiguity What function of the receiver is responsible for the rectification and smoothing? CORRECT ANSWERS: Demodulation What is the purpose of a transmit/receive (T/R) switch? CORRECT ANSWERS: It ...
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Add to cartWhat is the main disadvantage of continuous wave (Pedof) transducers? CORRECT ANSWERS: Depth ambiguity What function of the receiver is responsible for the rectification and smoothing? CORRECT ANSWERS: Demodulation What is the purpose of a transmit/receive (T/R) switch? CORRECT ANSWERS: It ...
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SPI Registry| 80 questions| with complete solutions
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All numerical values should have corresponding _____. CORRECT ANSWERS: units An ______ tool can be used to measure area CORRECT ANSWERS: ellipse _________ is not a unit. CORRECT ANSWERS: Percent Giga CORRECT ANSWERS: billion 10^9 G micro CORRECT ANSWERS: millionth 10^-6 How ma...
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Add to cartAll numerical values should have corresponding _____. CORRECT ANSWERS: units An ______ tool can be used to measure area CORRECT ANSWERS: ellipse _________ is not a unit. CORRECT ANSWERS: Percent Giga CORRECT ANSWERS: billion 10^9 G micro CORRECT ANSWERS: millionth 10^-6 How ma...
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Davies SPI REVIEW| 1707 questions| 178 pages| verified answers
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What action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each fam...
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Add to cartWhat action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each fam...
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DAVIES SPI REVIEW| 129 questions| with complete solutions
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Which of the following helps to improve the elevation resolution to B- mode image? correct answers Focusing with and acoustic lens During and exam, you encounter all of the interactions of ultrasound and tissue listed. Which one will NOT cause redirection of part of the ultrasound energy? c...
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Add to cartWhich of the following helps to improve the elevation resolution to B- mode image? correct answers Focusing with and acoustic lens During and exam, you encounter all of the interactions of ultrasound and tissue listed. Which one will NOT cause redirection of part of the ultrasound energy? c...
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Davie's SPI Review| 304 questions| with complete solutions
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This converter converts the numbers stored in memory to proportional voltages that control the brightness on a CRT monitor CORRECT ANSWERS: Digital to Analog Converter The Digital Scan Converter is AKA: CORRECT ANSWERS: Image Memory This is where images are stored in the ultrasound system: ...
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Add to cartThis converter converts the numbers stored in memory to proportional voltages that control the brightness on a CRT monitor CORRECT ANSWERS: Digital to Analog Converter The Digital Scan Converter is AKA: CORRECT ANSWERS: Image Memory This is where images are stored in the ultrasound system: ...
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Spi Davies Spi Davies| 618 questions| 172 pages| with complete solutions
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What action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A. Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B. Prolong the sonogram to make videos of the fetus for each ...
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Add to cartWhat action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A. Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B. Prolong the sonogram to make videos of the fetus for each ...
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SPI Review Questions – Davies| 120 questions| with complete solutions
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Will not cause a redirection of part of the ultrasound energy CORRECT ANSWERS: absorption You are scanning a large mass composed primarily of fat. What will you most likely encounter? CORRECT ANSWERS: axial misregistration of object distal to the mass on the screen due to the slower propagation...
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Add to cartWill not cause a redirection of part of the ultrasound energy CORRECT ANSWERS: absorption You are scanning a large mass composed primarily of fat. What will you most likely encounter? CORRECT ANSWERS: axial misregistration of object distal to the mass on the screen due to the slower propagation...
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Davies SPI 153 questions with complete solutions
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Interference patterns of reflected waves causes? CORRECT ANSWERS: acoustic speckle which of the following terms denotes the time it takes for one cycle to occur? CORRECT ANSWERS: Period which of the following increases as frequency increases? CORRECT ANSWERS: absorption scattering attenua...
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Add to cartInterference patterns of reflected waves causes? CORRECT ANSWERS: acoustic speckle which of the following terms denotes the time it takes for one cycle to occur? CORRECT ANSWERS: Period which of the following increases as frequency increases? CORRECT ANSWERS: absorption scattering attenua...
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DAVIES SPI: II. Physical Principles (20% of ARDMS)
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You have increased the transmit power while performing a pelvic ultrasound examination. This action increases which of the following? A. Penetration B. Acoustic power C. Image brightness D. Voltage applied to the transducer elements E. All of the above CORRECT ANSWERS: E. All of the abo...
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Add to cartYou have increased the transmit power while performing a pelvic ultrasound examination. This action increases which of the following? A. Penetration B. Acoustic power C. Image brightness D. Voltage applied to the transducer elements E. All of the above CORRECT ANSWERS: E. All of the abo...
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Davies SPI REVIEW print part 2| 500 questions| with complete solutions
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In order for distance measurements to be accurate in an ultrasound tissue phantom, the phantom sound propagation speed must be: A: 13 us/cm B: 1.54 m/s C: 154o m/s D: 1/2 the speed of sound in tissue E: Twice the speed of sound in soft tissue CORRECT ANSWERS: C: 1540 m/s You expanded t...
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Add to cartIn order for distance measurements to be accurate in an ultrasound tissue phantom, the phantom sound propagation speed must be: A: 13 us/cm B: 1.54 m/s C: 154o m/s D: 1/2 the speed of sound in tissue E: Twice the speed of sound in soft tissue CORRECT ANSWERS: C: 1540 m/s You expanded t...
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SPI Davies, UT Physics, part 1 questions with complete solutions
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What action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each fam...
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Add to cartWhat action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each fam...
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DAVIES SPI: III. Ultrasound Transducers (20% of ARDMS) questions with complete solutions
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This image was obtained with a linear array transducer. The trapezoidal field of view increases the field of view. How is the trapezoidal shape created? See image for question #244 A. Electronic beam steering B. Side lobes C. Grating lobes D. Mechanically steering the elements E. Mirror...
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Add to cartThis image was obtained with a linear array transducer. The trapezoidal field of view increases the field of view. How is the trapezoidal shape created? See image for question #244 A. Electronic beam steering B. Side lobes C. Grating lobes D. Mechanically steering the elements E. Mirror...
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Davies Physics SPI questions with complete solutions
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While performing a Doppler ultrasound examination you adjust the pulse repetition frequency to 12 kilohertz this can also be expressed as CORRECT ANSWERS: 12,000 Hz When you change the transmit frequency which of the following is altered CORRECT ANSWERS: Number of cycles per second Relative ...
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Add to cartWhile performing a Doppler ultrasound examination you adjust the pulse repetition frequency to 12 kilohertz this can also be expressed as CORRECT ANSWERS: 12,000 Hz When you change the transmit frequency which of the following is altered CORRECT ANSWERS: Number of cycles per second Relative ...
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200/500 Davies Review SPI questions with verified answers
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The half intensity depth for a 2MHz transducer in soft tissue is CORRECT ANSWERS: 3cm Attenuation is lowest in which of the following mediums CORRECT ANSWERS: water Increasing frequency will result in all the following except CORRECT ANSWERS: a. range resolution improvement b. transverse r...
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Add to cartThe half intensity depth for a 2MHz transducer in soft tissue is CORRECT ANSWERS: 3cm Attenuation is lowest in which of the following mediums CORRECT ANSWERS: water Increasing frequency will result in all the following except CORRECT ANSWERS: a. range resolution improvement b. transverse r...
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SPI- interaction of sound and media questions with answers
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Attenuation CORRECT ANSWERS: Its the decrease in intensity, power and amplitude and the sound wave travels through a medium. Is attenuation related to the propagation speed? CORRECT ANSWERS: NO! because although the sound wave in becoming weaker it is still traveling in the same medium therefor...
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Add to cartAttenuation CORRECT ANSWERS: Its the decrease in intensity, power and amplitude and the sound wave travels through a medium. Is attenuation related to the propagation speed? CORRECT ANSWERS: NO! because although the sound wave in becoming weaker it is still traveling in the same medium therefor...
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SPI: SOUND WAVES questions and answers
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What term is used to describe the effects of an ultrasound wave on living tissues? a. toxic effects b. acoustic propagation properties c. biological effects d. transmission CORRECT ANSWERS: c. As sound travels through a medium, what term describes the effects of the medium on the sound wave?...
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Add to cartWhat term is used to describe the effects of an ultrasound wave on living tissues? a. toxic effects b. acoustic propagation properties c. biological effects d. transmission CORRECT ANSWERS: c. As sound travels through a medium, what term describes the effects of the medium on the sound wave?...
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SPI Physics Board Review questions with complete solutions
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Metric notations: giga, mega, kilo, hecto, deca, deci, centi, milli, micro, and nano correct answers 10 to the... Giga 9, mega 6, kilo 3, hecto 2, deca 1, deci -1, centi -2, milli -3, micro -6, nano -9 Complimentary metric units: what goes with giga? Mega? Hecto? Deca? correct answers Giga+...
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Add to cartMetric notations: giga, mega, kilo, hecto, deca, deci, centi, milli, micro, and nano correct answers 10 to the... Giga 9, mega 6, kilo 3, hecto 2, deca 1, deci -1, centi -2, milli -3, micro -6, nano -9 Complimentary metric units: what goes with giga? Mega? Hecto? Deca? correct answers Giga+...
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SPI Clinical Safety & Patient Care questions with complete solutions
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What can be done to reduce the Mechanical Index level during an exam? A. reduce output power B. decrease probe frequency C. increase the threshold setting D. use contrast materials on the exam CORRECT ANSWERS: A.) reduce output power All of the following statements are true regarding equipm...
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Add to cartWhat can be done to reduce the Mechanical Index level during an exam? A. reduce output power B. decrease probe frequency C. increase the threshold setting D. use contrast materials on the exam CORRECT ANSWERS: A.) reduce output power All of the following statements are true regarding equipm...
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SPI REVIEW QUESTIONS: Principals questions with complete solutions
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Which of the following console controls will have NO effect on the dynamic range? A. rejection B. suppression C. compression D. output power CORRECT ANSWERS: D. output power What can be done to improve the visualization of the anterior aortic wall? A. Angle the probe until the ultraso...
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Add to cartWhich of the following console controls will have NO effect on the dynamic range? A. rejection B. suppression C. compression D. output power CORRECT ANSWERS: D. output power What can be done to improve the visualization of the anterior aortic wall? A. Angle the probe until the ultraso...
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Flashcard SPI| 180 questions| with complete solutions
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What is a wave? CORRECT ANSWERS: A cyclical Transfer of energy What kind of wave is a sound wave? CORRECT ANSWERS: A mechanical longitudinal wave What are the types of interference? CORRECT ANSWERS: Constructive, Destructive and Partial What is the Classification of Ultrasound? CORRECT ...
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Add to cartWhat is a wave? CORRECT ANSWERS: A cyclical Transfer of energy What kind of wave is a sound wave? CORRECT ANSWERS: A mechanical longitudinal wave What are the types of interference? CORRECT ANSWERS: Constructive, Destructive and Partial What is the Classification of Ultrasound? CORRECT ...
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SPI exam 1| 86 questions| with complete solutions
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Electronic pulses from the pulser are applied to the CORRECT ANSWERS: Transducer Which of the following is performed by the receiver CORRECT ANSWERS: Amplification, compensation, compression, demodulation The dynamic range of ultrasound system is defined as CORRECT ANSWERS: The ratio of the...
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Add to cartElectronic pulses from the pulser are applied to the CORRECT ANSWERS: Transducer Which of the following is performed by the receiver CORRECT ANSWERS: Amplification, compensation, compression, demodulation The dynamic range of ultrasound system is defined as CORRECT ANSWERS: The ratio of the...
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SPI exam 3| 91 questions| with complete solutions
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No known effect CORRECT ANSWERS: The confirmed bio effects on pregnant women with use of real-time diagnostic instruments is: Low-frequency, high-intensity CORRECT ANSWERS: Which of the following combinations of frequency and intensity would most likely result in cavitation? Continuous wave ...
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Add to cartNo known effect CORRECT ANSWERS: The confirmed bio effects on pregnant women with use of real-time diagnostic instruments is: Low-frequency, high-intensity CORRECT ANSWERS: Which of the following combinations of frequency and intensity would most likely result in cavitation? Continuous wave ...
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SPI exam 2| 111 questions| with complete solutions
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128-256 CORRECT ANSWERS: A cross-section image is made up of many scanlines. How many scanlines are there in one frame? Electromagnet wave CORRECT ANSWERS: Which type of wave is able to travel in both vacuum and different media Mechanical longitudinal wave CORRECT ANSWERS: Which type of wav...
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Add to cart128-256 CORRECT ANSWERS: A cross-section image is made up of many scanlines. How many scanlines are there in one frame? Electromagnet wave CORRECT ANSWERS: Which type of wave is able to travel in both vacuum and different media Mechanical longitudinal wave CORRECT ANSWERS: Which type of wav...
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Davies spi Physical principles questions with complete solutions
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The mass you are imaging has a diameter of 35MM. The value can also be expressed as: A. 350 cm B. 0.35 cm C. 3.5 cm D. 35 m E. 3.5 CORRECT ANSWERS: C. 3.5 cm Relative measurement based on a logarithmic scale is expressed in: A. Newtons per centimeter squared B. Watts per centimeter s...
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Add to cartThe mass you are imaging has a diameter of 35MM. The value can also be expressed as: A. 350 cm B. 0.35 cm C. 3.5 cm D. 35 m E. 3.5 CORRECT ANSWERS: C. 3.5 cm Relative measurement based on a logarithmic scale is expressed in: A. Newtons per centimeter squared B. Watts per centimeter s...
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SPI ultrasound physics review| 135 questions| with complete solutions
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What is frequency determined by? CORRECT ANSWERS: The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies CORRECT ANSWERS: Lower What is the reciprocal of frequency and what is the symbol CORRECT ANSWERS: Perio...
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Add to cartWhat is frequency determined by? CORRECT ANSWERS: The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies CORRECT ANSWERS: Lower What is the reciprocal of frequency and what is the symbol CORRECT ANSWERS: Perio...
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DAVIES SPI: IV. Pulse-Echo Instrumentation (30% of ARDMS)| 180 questions| verified answers
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What is a typical frame rate for B-mode real-time imaging? A. 1-9 kHz B. 10-50 Hz C. 100-200 MHz D. 200-300 Hz E. 0.05-0.9 Hz CORRECT ANSWERS: B. 10-50 Hz <Frame rates are displayed in terms of Hz, a unit of frequency equal to one cycle per second. Although frame rates vary, typical re...
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Add to cartWhat is a typical frame rate for B-mode real-time imaging? A. 1-9 kHz B. 10-50 Hz C. 100-200 MHz D. 200-300 Hz E. 0.05-0.9 Hz CORRECT ANSWERS: B. 10-50 Hz <Frame rates are displayed in terms of Hz, a unit of frequency equal to one cycle per second. Although frame rates vary, typical re...
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Davies SPI - US Physics| 113 questions| verified answers
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You have decreased the acoustic power by -3 dB. Which of the following most accurately describes this adjustment? A. Intensity has been quadrupled B. Intensity has been quartered C. Intensity has been increased 10 times D. Intensity has been halved E. Intensity has not been altered CORRECT A...
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Add to cartYou have decreased the acoustic power by -3 dB. Which of the following most accurately describes this adjustment? A. Intensity has been quadrupled B. Intensity has been quartered C. Intensity has been increased 10 times D. Intensity has been halved E. Intensity has not been altered CORRECT A...
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SPI Exam Review (Key Terms) questions and answers
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13 microsecond rule CORRECT ANSWERS: the rule that states that it takes 13 microseconds for sound to travel 1 cm in soft tissue absorption CORRECT ANSWERS: the conversion of sound energy to heat acoustic cavitation CORRECT ANSWERS: the production of bubbles in a liquid medium acoustic sp...
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Add to cart13 microsecond rule CORRECT ANSWERS: the rule that states that it takes 13 microseconds for sound to travel 1 cm in soft tissue absorption CORRECT ANSWERS: the conversion of sound energy to heat acoustic cavitation CORRECT ANSWERS: the production of bubbles in a liquid medium acoustic sp...
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