radiography Flashcards
1
Q
sclerosis
A
bone increases in density
2
Q
lysis
A
inside bones- bone decreases in density. also called lytic lesions
3
Q
CT scan
A
attenuation depends on density, not tissue type
4
Q
hounsfield scale
A
from -1000 to 1000. related to density- air is -1000 and metal is 1000
5
Q
ultrasound
A
relies on soundwaves reflecting back from tissue to create and image. different densities reflect soundwaves differently.
6
Q
MRI
A
best for addressing soft tissues. measures the number of hydrogen ions
