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Why is it necessary for the pulse to be short in ultrasound A- scans?
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Do porpoises produce ultrasound?
Yes they do - in the form of high-pitched 'clicks'. Each "click" is a very short pulse or chirp of ultrasound. (A pure 'click' is merely a transient.)
What is the definition of wave pulse?
a wave pulse is a short wave with no repeated oscillations
What is pulse mechanical or electromagnetic?
A pulse is a short wave. It can be any type of wave.
What is a short length of wave that travels?
This is often called a "pulse".This is often called a "pulse".This is often called a "pulse".This is often called a "pulse".
Does a person have a pulse after they have taken the last breath?
Yes they will still have a pulse for a short period of time.
why does not any?
why we donot have short time traning for ultrasound technician?
What is a bioplasma?
A bioplasma is a short laser pulse of biological origin.
Is pulse a long or short vowel word?
"Pulse" is considered a short vowel word because the "u" is pronounced with a short sound like in "cup" rather than a long sound like in "cube."
What will result in the best axial resolution long pulse length short pulse length low pulse repetition frequency or high pulsed repetition frequency?
== == In diagnostic ultrasound axial resolution is influenced by a number of factors including transmission pulse length and frequency of the probe. For best axial resolution short pulses are used - long pulses can potentially improve the signal to noise ratio but their use often results in "range side lobes", effectively a reduction in axial resolution. Pulse repetition frequency (PRF) is a separate issue to axial resolution however high frequency probes are able to have a higher PRF (resulting in higher frame rates) than low frequency probes due to the higher rate of absorption of the higher frequency signals.
What is steroid pulse therapy?
High dose, short duration corticosteroid therapy.
What are Sferics?
sferic (plural sferics) # A short pulse of electromagnetic radiation produced by lightning
Why is it possible to produce a very narrow beam with ultrasound?
The definition of Ultrasound is very short wavelengths of sound used in a similar way to x-rays. The reason that ultrasound is used is the fact that sound does can be used for getting moving pictures of internal bits of the body that x-rays can show as accurately
