Coded excitation*

Question 1

where is coded excitation created?

Answer 1

in the pulser

Question 2

what is coded excitation created for?

Answer 2

to compensate for the FDA regulations to not exceed minimal intensity levels by compacting multiple weak echos into one big echo

Question 3

what does coded excitation do?

Answer 3

creates very long sound pulses containing a wide range of frequencies with gaps, stacking multiple pulses to create higher intensities but keeping the peak intensity within FDA’s limit

Question 4

what does coded excitation improve?

Answer 4

-increase penetration
-improves signal:noise ratio
-contrast, spatial, and axial resolution
-reduces range ambiguity artifacts

Question 5

what artifact does coded excitation decrease?

Answer 5

noise artifact