Penny SPI review Questions and Answers (100% Pass)
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Course
Penny SPI
Institution
Penny SPI
What is enhancement caused by?
weakly attenuating structures
What is the multipath artifact?
artifact caused by the sound beam bouncing off several different
reflectors
What is the typical value of PRF in diagnostic ultrasound?
1000-10,000 Hz or 1-10 KHz
What are specular reflections?
...
✓ the depth at which sound has lost half of its intensity
phase quadrature
✓ the component of the Doppler device that determines positive
opposed to negative frequency shifts and, therefore, direction of
blood flow
Fast Fourier Transform (FFT)
✓ a mathematical process used for analyzing and processing the
Doppler signal to produce the spectral waveform
What describes the distance from the beginning of a cycle to the end of that
cycle?
✓ wavelength
What reduces pulse duration?
✓ damping
What are harmonic signals?
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