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Which transducer angle will result in the maximum negative shift?

If the PRF increases, duty factor ___________

Which of the following bioeffects refers to the formation of microbubbles that burst and cause damage to tissues?

Which of the following is a necessary machine setting when performing a contrast evaluation of the heart?

In Doppler, the number of pulses per scan line is called ____.

Ultrasound waves in tissues are called _____________ waves.

A pulse travels through a large mass at a speed of 1.25 mm/us, where will the distal tissues’ echoes be placed?

What is the most appropriate procedure for obtaining a signed consent from a non-English speaking patient?

You are using a conventional linear array transducer to image this phantom image; two fluid-filled tubes are present. Why does the tube labeled “B” contain echoes, whereas the tube labeled “A” does not?  

Two hundred (200) patients were examined by Bilateral Internal Carotid Arteries (ICA) Duplex Ultrasonography and Cerebral Angiography. Of these, 300 ICAs were correctly identified as being within normal limits, 80 ICAs were correctly identified as having significant stenosis, 15 ICAs were incorrectly considered to have significant stenosis by sonography and 5 ICAs were incorrectly considered to be within normal limits by sonography. What is the Sensitivity of ICAs Duplex?