EBCT

Question 1

goal is to obtain complete durable remission

Answer 1

curative treatment

Question 2

also considered curative [can be adjuvant] consists of macroscopically uninvolved areas which are thought to be site of occult subclinical localizations

Answer 2

prophylactic treatment

Question 3

limited intent of improving the patient’s quality of life and prolonging his survival

Answer 3

palliative treatment

Question 4

beam delivery systems

Answer 4

conventional
conformal
IMRT/IGRT

Question 5

tissue equivalent material placed in contact with skin to achieve:
- higher skin dose
-compensate for missing tissue
-compensate for lack of scatter

Answer 5

bolus

Question 6

materials uses as bolus

Answer 6

paraffin wax mixed w/ beeswax
flour and rice
cellophane wrapped wet towels or gauze

Question 7

same goal as bolus but does not cause a loss of skin sparing effect
more laborous

Answer 7

compensator/compensating filter

Question 8

made by pouring polyurethane foam into a styro foam shell placed in a polyvinyl bag

Answer 8

alpha cradle

Question 9

consist of urethane bag filled with small polystyrene beam, mould becomes rigid when air is evacuated

Answer 9

vok-lok system

Question 10

thermoplastic mask is softened with warm water bath and moulded into external contours

Answer 10

aqua plast

Question 11

response to treatment [5]

Answer 11

complete remission
partial remission
minimal remission
progression
stable disease

Question 12

causes of failure in rtx

Answer 12

error of judgement, omission and commission