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Index
 »Â
RAT 121 Acronyms
 »Â
Chapter 1
 »Â
Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
as low as reasonably achievable
ALARA
anteroposterior/posteroanterior
AP/PA anteroposterior/posteroanterior
Twice daily
bid
central nervous system
CNS
cardiopulomonary resuscitation
CPR
computed tomography
CT
clinical target volume
CTV
ductal carcinoma in situ
DCIS
depth of maximum dose
dmax
do not resuscitate
DNR
digitally reconstructed radiographs
DRR
dose volume histogram
DVH
dose volume histogram
EBRT x
electronic portal image
EPI
focus to axis distance
FAD
focus to film distance
FFD
focus to skin distance
FSD
gross tumour volume
GTV
high dose rate
HDR
image guided radiation therapy
IGRT
intensity modulated radiation therapy
IMRT
intravenous
IV
kilovolt
kV
low dose rate
LDR
multileaf collimator
MLC
monitor unit
MU
magnetic resonance (imaging)
MR(I)
methicillin resistant staphylococcus aureus
MRSA
megavolt
MV
organ at risk
OAR
optical distance indicator
ODI
positron emission tomography
PET
parallel opposed pair
POP
prostate specific antigen
PSA
planning target volume
PTV
quality assurance
QA
source to axis distance
SAD
source to skin distance
SSD
suprasternal notch
SSN
superior vena cava obstruction
SVCO
thermoluminescent dosimeter
TLD
volumetric modulated arc therapy
VMAT
3D conformal radiation therapy
3DCRT
four dimensional computed tomography
4DCT