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Flashcards in Role And Function Of RT Deck (46):
1

What can cancer be exacerbated?

Smoking alcohol radiation genes

2

Can cannabais be useful for cancer treatment?

Yes

3

Where do tumours spread via?

Lymphatic and blood drainage
Produces multiple growths that can stop tissue

4

What is systematic treatment?

Chemotherapy that goes throughout the body

5

Why is surgery used for treatment of cancer?

To remove structure to avoid compression of vital organs

6

What are some different treatments for cancer?

Surgery chemotherapy immunotherapy

7

What is the aim of radiotherapy?

To kill tumour cells before they spread systematically
Reduce size of tumour and to help symptoms

8

How does hormonal therapy work?

Manipulate growth factors for tumours

Androgen for males

9

How does immunotherapy work?

Insertion of antibodies

10

What is palliative radiotherapy?

Improve quality of life not necessarily quantity

11

Is metastatic disease curable?

No

12

Does palliative treatment involve lower doses to larger volumes of tissue?

Yes

13

How does radiotherapy work?

Ionisation damages DNA or ionises into more damaging chemicals eg radicals

14

Can normal cells recover from DNA damage?

Yes
But cancerous cells can't when they try to replicate they die

15

How was cancer treated in the 1800s?

Radioactive sources were held next to the tumours
Had severe side effects

16

How is radiotherapy produced?

By a linear accelerator
More acceleration more energy

17

What is 4Mev energy used for?

Head and neck treatment

18

What is 6mv energy used for?

Thorax

19

What is 10Mv or 18Mv energy used for?

Pelvis

20

What is kilovoltage energy used for?

Superficial and skin tumours

21

What is mega voltage therapy?

Produce High energy x-rays cannot rotate 360 degrees due to cables

22

What is brachytherapy?

Positioning radioactive sources near a tumour through cavities or openings in the body

23

Does brachytherapy give less dose to surrounding tissues?

Yes more targeted

24

What is tomotherapy?

Can be really accurate
High dose gradients can take longer
Is radiation therapy slice by slice which is a form of IMRT

25

What is IMRT

Where Mlcs shape the beam and you have different dose gradients

26

What do radiation therapists do?

Plan deliver RT
Safety and accuracy
Support and care
Education and research
Advocate for patient

27

What is the patient pathway: prescription?

Referral for RT
-Radiation oncologists decide optimal treatment prescribes dose energy and timing of course
-Patient is booked for imaging

28

What is the patient pathway: localisation?

Receive a CT
Images identify tumour and any critical structures

29

Patient pathway:planning?

Used special software to illustrate the distribution of dose

30

What is treatment chosen based on?

Tumour control and normal tissue damage

31

What is treatment planning used for?

Decide how to direct radiation to the tumour

Ensure normal tissues don't receive too much dose

Ensure critical structures are safe

32

What is PET?

Inject a radioactive dye and will go through PET scanner and will give off high traces of metastatic spread

33

What is the patient pathway of treatment?

Explain process and potential side effect
Position patient correctly go to mm

34

What is an ITV

Internal target volume

35

Typical treatment times?

10-15 mins for 5-8 wks

36

Side effects of radiation therapy?

Erythema
Temporary hair loss
Diarrhoea
Nausea
Frequency of urination

37

Epilation depends on what?

The location if treating prostate it will not but brain treatment yes

38

Can you wash the treatment area?

Yes you can bath it no soap aqueous cream preferred

39

Can a patient emit radiation?

Yes

40

What is the aim of radical radiotherapy?

To cure the patient

41

What does radical radiotherapy involve

High doses to relatively small volumes of tissue
Requires complex planning and techniques

42

Is radical radiotherapy used in conjunction with other treatments?

Yes

43

For testicular cancer what gy is generally used?

25 gy

44

What gy does the CSI generally receive?

30Gy

45

Breast cancer is a combination of what treatments?

Surgery, Chemotherapy and RT

46

Larynx is it generally treated alone>

Yes