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One hundred Forty (140) patients each one had 2 venous studies for Acute Deep Venous Thrombosis, non-invasive (new test) and invasive (gold standard). No evidence of disease was detected in 54 patients. In 12 cases the non-invasive studies were negative, but the invasive tests were positive. 68 patients showed Acute DVT by both tests. In 6 cases the non-invasive studies were positive, but the invasive studies were negative. The number of True Positive is ______

Which sound beam frequency would exhibit the greatest intensity loss with increasing depth?

The term “in vivo” refers to:

In the Doppler equation (ΔF = 2 F0 x V / C). What does ΔF stand for?

The Doppler shift is ____________

How many bits make up a byte?

In this image, the Doppler spectral display exhibits _________

Multiple focuses can achieve a ______.

The difference between the emitted frequency and the echo frequency returning from a moving scatterer is known as __________.

A Doppler shift of 1.5kHz is detected in an artery. If the velocity of the blood flow doubles what is the new Doppler shift detected?