1dark in x-rays. Structure allows passage of x-rays
radiolucent
2light in xrays. structure reflects or absorbs xrays, leaving film unexposed
radiopaque / radiodense
4greyish black part of xray
fat
6white part of xray
bone/metal
7____________ bone is denser than trabecular bone and so it appears white
cortical
8Use of radiopaque fluid (contrast) increases ________________
visualization
9AP xrays
travels anterior to posterior
10PA xrays
travels posterior to anterior
11when taking an xray why should the region of greatest interest be placed as close as possible to the film
to reduce undesirable magnification/distortion
12uses xrays to capture cross sectional images (traditional contrasts similar to traditional radiography)
computed tomography (CT)
13measures excitation of protons in response to magnetic stimulus (better for soft tissue differentiation)
magnetic resonance imaging (MRI)
14emits high frequency sound waves that reflect off of tissue interfaces (highly portable and inexpensive)
ultrasonography
15how are radiographs read
read as though a patient were facing you standing
16how are CT scans read
read as though looking at patient from the foot of the bed