What is dynamic aperture - Study guides, Class notes & Summaries

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C - Answer- What is dynamic aperture? A.aperture that varies with transmit frequency B.aperture that decreases as a function of time C.aperture that increases with increasing focal length D.aperture that changes as a function of frame rate A - Answer- to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed B - Answer- which imaging mode requires a broadband transducer? A.continuous wave doppler B.Pulsed wave dopple...

C What is dynamic aperture? A.aperture that varies with transmit frequency B.aperture that decreases as a function of time C.aperture that increases with increasing focal length D.aperture that changes as a function of frame rate A to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed B which imaging mode requires a broadband transducer? A.continuous wave doppler B.Pulsed wave doppler C.color flow imaging D.harmo...

Which term describes blood flow changes in response to respiration? A. Phasic B. Parabolic C. Spontaneous D. Pulsatile -answer- Phasic What is demonstrated in this image produced by a linear array to placed on a uniform tissue-mimicking phantom? A. Time gain compensation not set properly. B. System has low dynamic range. C. Transducer crystals are damaged. D. Focus control is malfunctioning. -answer- Transducer crystals are damaged What is dynamic aperture? A. Aperture that ...

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Destructive vs constructive interference - ️️Constructive interference occurs when two waves overlap at the same location at the same point in time ( in phase) and the new combined wave has an amplitude greater than the original two waves. Destructive interference occurs when the waves are out-of-phase and the amplitude of the new wave is less than one of the original waves What is dynamic frequency tuning? - ️️A pulse from a transducer contains a wide range of frequencies (broad b...

transducer Electronic pulses from the pulser are applied to the ? amplification, compensation, compression, and demodulation What functions are preformed by the receiver? the ratio of the maximum to the minimum intensity that can be displayed The dynamic range of an ultrasound system is described as? frequency divided by bandwidth How is the QF of a transducer determined? PZT The most common man-made crystal is : travel time and speed Which variables must be known in order to calculat...

what is the distance to the interface if the round trip time for a sound wave is 39 microseconds? o :## 3cm which signals are eliminated by the wall filter in a spectral Doppler display? o :## low frequency, low amplitude at minimum, what is required when documenting a pathology discovered during an examination? o :## two images demonstrating the same pathology from different scan planes If the diameter of the sound beam is halved by focusing, what happens to the intensity o :## Incre...

LATEST VERSION 2024/25 What is dynamic aperture? to which acoustic variable is penetration depth inversely related? which imaging mode requires a broadband transducer? what is the doppler shift frequency? what is the potential effect of increasing the pulse repetition frequency(PRF)? what is an advantage of using pulsed wave doppler compared to continuous wave doppler? SPI (ARDMS A & B)

1. C<ans) What is dynamic aperture? A. aperture that varies with transmit frequency B. aperture that decreases as a function of time C. aperture that increases with increasing focal length D. aperture that changes as a function of frame rate 2. A<ans) to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed 3. B<ans) which imaging mode requires a broadband transducer? A.continuous wave doppler B. Pulsed wave doppler...