Upgrade to remove ads
Review CH 1-7
Terms in this set (23)
Which of the following characteristics will be create the fastest speed of sound
low density, high stiffness
which of the following waves is ultrasonic and LEAST useful in diagnostic imaging?
B) 2.5 MHZ
Which of the following is the MOST useful in diagnostic imaging?
B) 100 MHZ
True or false- if the amplitude of a wave is increased to 3 times its original value, the intensity is increased by 6 times.
True or False- IF the power of a wave is halved, the intensity is reduced to one-fourth its original value.
A Drop in intensity to one-quarter of its original value is
-10DB means that the intensity is reduced to ____of its original value.
Every 10 dB means that the intensity will ________.
increase ten times
name the 3 components of attenuation. which 3 components is dominant contributor to attenuation.?
Absorption attenuated sound the most!
as the path length increases, attenuation of US in soft tissue_____
total attenuation in soft tissue is related to_________and _______
path length and Freq of sound
Attenuation in lung tissue is [less than, greater than, the same as] attenuation in soft tissue.
attenuation in bone is _____than soft tissue
attenuation in air is ____than soft tissue
attenuation in water is ____than soft tissue
Much less than
what are the units of attenuation ?
what is the relationship btwn propagation speed and the attenuation coefficient in soft tissue.?
What is the relationship btwn US frequency and the attenuation coefficient in soft tissue.
half of the ultrasonic frequency in MHZ
As the path length increases, the attenuation coefficient of US in soft tissue________
remains the same
acoustic impedance =
density x propagation speed
Impedance is important in ____ at boundaries.
In soft tissue,attenuation coefficient is directly related to _________
The amount of Rayleigh scattering is related to ...
This set is often in folders with...
ch. 10 continue..
Ch.1 metric system part 2-physics
ch 12. Contrast, Spatial & Temporal resolution
Other sets by this creator
ch 13 part 2
Ch.11 two-dimensional imaging
Ch. 22 Bioeffects
ch.21 Quality Assurance & clinical Environment
Other Quizlet sets
TCM test. Vital Substances B Chapter
Les précurseurs en histoire et épistémologie
Chapter 12 SCM
Astro Exam 3