RIU 324 Study Guide - Midterm Guide: Medical Ultrasound, Sonographer, Grayscale
23 Apr 2020
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The exams are identical except that the transducer frequencies are. Doppler shift: the 4 mhz exam, what is shown in this spectral display? a, spectral broadening, which term describes the group of pulses that interrogate one color line of sight, ensemble length. 12. how can the color aliasing artifact be eliminated: changing the baseline. 13. if the timing delay for gate activation is changed from 48 us to 52 us, what is the effect on the. Doppler sampling volume: sampling volume is at increased depth. 14. aliasing is due to: undersampling of the echo frequencies, which type of color map is used? a, velocity map, what is the purpose of doppler reject, removes low-amplitude signals from the spectral display. 17. what is the maximum velocity waveform: time trace of the max velocity in each fast. The doppler angle is 0 degrees and the transducer frequency is 2mhz: 8,311, what is the purpose of the wall filter, removes low frequency components in the.
