XRAY Flashcards
AP projection
back against wall
PA projection
stomach against wall
Left Lateral projection
left side against wall
Right Lateral projection
right side against wall
L posterior oblique position results in what projection
an AP oblique projection (L back/side in contact with wall)
R posterior oblique position results in what projection
an AP oblique projection (R back/side in contact with wall)
R anterior oblique position results in what projection
a PA oblique projection (R stomach/side in contact with wall)
L anterior oblique position results in what projection
a PA oblique projection (L stomach/side in contact with wall)
what is a radiograph
x-ray film containing an image of an anatomical part
what is a plain film
conventional radiograph image
what is density
how much radiation is absorbed
what is opacity
high density (white areas on film)
what is sclerosis
increased density of bone
what is lucency
low density (black areas on film)
what is contrast media
bright white outline (Barium)
What structures appear black on film
air (lungs, trachea, bronchi, air in bowl, stomach)
list material from less dense to more dense (black to white)
air, fat, water, mineral, heavy metals
foreshortening
angle of beam causing part of structure to be closer to the beam will appear shorter and larger
elongation
angle of beam causing object to be farther way from beam source will appear longer and larger
