Chapter 16 & 17

List everything in the more shades chart:

(a)  

Tissue Harmonics

• results from nonlinear behavior of microbubble

• weaker harmonic signal

• stronger harmonic signal

• created during reflection off of microbubble

Tags

NGSS.HS-PS4-5

A scale’s range of (a)   measurement is 30 to 300 pounds- excellent for

measuring the weight of an adult, but not suitable for measuring the weight

of a bunch of grapes or an automobile.

What is dynamic range?

(a)  

Weak signals (below 30 pounds) are below the system's

(a)  

These strong signals (above 300 pounds) (a)   the system.

the dynamic range of information (a)   the more it is processed.

Contrast Harmonics

• occurs as sound propagates in tissue

• created during transmission in tissue

• results from nonlinear behavior of microbubble

• results from nonlinear behavior of transmitted sound beam

Rank the dynamic range of components from least to greatest with their

range. (receiver, display, scan converter, transducer, archive)

(a)  

Higher MI: 0.1 to 1.0

• some harmonics, resonance, nonlinear behavior, lower frequency sound, higher beam strength, bubble expands moderately

• strongest harmonics, resonance, nonlinear behavior, lower frequency sound, higher beam strength, bubble expands moderately

• no harmonics, backscatter, linear behavior, higher frequency sound, low beam strength, bubble expands very little

• some harmonics, resonance, linear behavior, higher frequency sound, higher beam strength, bubble expands moderately

Tags

NGSS.HS-PS4-1