Pt Data Acquisition Flashcards
1
Q
fluoroscopy
A
xrays picked up by an image intensifier and converted to an immediate real time image on screen
see organs in motion in real time
2
Q
DRR
A
digitally reconstructed radiograph
created by manipulation of CT data in 2D
3
Q
port film
A
hard xray taken on treatmen unit of treatment beam
used for documenting and verifying treatment delivered
4
Q
EPI
EPID
A
electronic portal image
taken on treatment unit and rendered using digital technology
higher quality than actual film
stored visually or digitally
5
Q
orthogonal films
A
2 films take 90 degrees apart
used to locate isocenter in sup&ing, ant&post, l&r
6
Q
image matching
A
comparing planned images to daily treatment position images
7
Q
types of simulators?
A
fluoroscopic
CT
newer MRI, PET
8
Q
flouroscopic sim (4)
A
- takes xrays, performs fluoroscopy
- uses bony anatomy
- need orthogonal films to localize in 3D
- common in palliative and watching lung motion
9
Q
CT sim (2)
A
results in DRRs
kV
