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Physics Exam II: PW Doppler

Across
Typical units for US pulse duration
_____ resolution is the accuracy of the US display over time
Typical unit for US wavelength
Typical unit for US pulse repetition period
Time the transducer is creating a pulse
_____ resolution is the ability to distinguish two targets, front to back
Length of a pulse in space
Remains constant with changing depths within the PRP
Advantage of PW Doppler
Pneumonic to remember the synonyms of axial resolution
Strangest synonym for lateral resolution
The _____ PRF equals 77 kHz divided by the imaging depth in cm
The time it takes to create a single US image
Pulsed Doppler utilizes _____ output power compared to pulsed imaging
Abbreviation for the # of pulses occurring in 1 second
The number of US images per second an US system can display
At increased imaging depths, the PRP will be _____
Down
Disadvantage of CW Doppler
Equals the # of cycles times the wavelength
Abbreviation for the time between the beginning of a pulse to the beginning of the following one
Increases with increasing depth within the PRP
The percentage of time that a pulse is being produced
Longest synonym for axial resolution
Resolution determined by the SPL divided by 2
The maximum possible duty factor
The PRF _____ with increasing imaging depths
_____ resolution is the ability of US to detect structures that are separate and display them as so
_____ resolution determined by the US beam width
Pulsed Doppler pulses are _____ than pulsed imaging pulses
What is the PRF (in kHz) given a PRP of 0.25 msec