Monitoring room and patient Flashcards
1
Q
Where are emergency procedures posted?
A
At the machine
2
Q
What are the states of operational status of the control console?
A
- stand by
- prep
- ready
- beam on
3
Q
Why are interlocks used?
A
designed to protect patient, staff, and equipment
4
Q
True/ False
More electrons are used during photon mode
A
true
5
Q
In what time can 2Gy be given?
A
.03 sec @ 4,000/ min
6
Q
True/ False
Treatment w/o a flattening filter is much faster
A
true
7
Q
What kinds of new technologies are there?
A
- conformal therapy (older)
- multileaf collimation/ wedge
- Electronic portal imaging (epid)
- on board imagers
- stereotactic rad therapy
- IMRT
- tomotherapy
- IGRT
8
Q
Conformal
A
- dose profile
- arc therapy
- -treatment at many angles, less dose per angle
- IMRT: inverse planning system
9
Q
MLC
A
usually made of tungsten
- smaller= more precise
- rounded on the end
10
Q
Dynamic edge
A
upper collimator replaces the wedge
-curved with divergence of the beam
11
Q
Epid
A
MV
12
Q
OBI
A
KV
13
Q
Stereotactic
A
radiosurgery
- can be up to 3-8 hours
- very precise treatment
- AVM can be treated with rad
14
Q
Tomotherapy
A
bimodal: either open or shut 6 MV treat with high radiation very conformal somewhat limited
15
Q
Rapid arc treatment plan
A
varian
usually 1-3 arcs
*more time
