Vascular Theory Chapter 2 Practice Questions (SPI INTRO)
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10 Terms
What grayscale controls optimize image brightness at various tissue depths?
time gain compensation
Sound energy that diminishes due to deeper travel tissue?
attenuation
Which parameter measures heat?
Therma Index (MI)
What reduces aliasing in Spectral doppler imaging?
Decreasing pulse repetition period (PRP)
Percentage of time is?
Duty Factor
What analyzes signal in spectral Doppler Ultrasound?
Fast Fourier Transform
Which Doppler signals amplitude without directionality?
Power Doppler
What is used as Piezoeletric Element in transducers?
Lead Zirconate Titante
What artifacts appears as multiple parallel lines?
Reverberation
Primary advantage of Pulse-Waved Doppler over continuous wave doppler?
PW doppler allows selectable sample volume