Clinical introduction lecture

Question 1

What does CRT stand for?

Answer 1

Conformal Radiation Therapy

Question 2

What does CT Stand for?

Answer 2

Computed Tomography

Question 3

What does CTV stand for?

Answer 3

Clinical Target Volume/Clinical Treatment volume

Question 4

What does DICOM stand for?

Answer 4

Digital Imaging and communications in medicine

Question 5

What is GTV?

Answer 5

Gross Tumour Volume

Question 6

What is the PTV?

Answer 6

Planning Target Volume

Question 7

What is the OAR?

Answer 7

Organs at risk

Question 8

DVH?

Answer 8

Dose volume Histogram

Question 9

EPID?

Answer 9

ectronic portal imaging Syste

Question 10

FDG?

Answer 10

18G 2-fluro-2deoxyglucose

Question 11

ICRU?

Answer 11

International commission on radiation units and measurements

Question 12

IGRT?

Answer 12

Image guided radiotherapy

Question 13

IMRT?

Answer 13

Intensity modulated radiotherapy

Question 14

ITV?

Answer 14

internal Target Volume

Question 15

MLC?

Answer 15

Multi-leaf collimater

Question 16

MRI?

Answer 16

Magnetic Resonance Imaging

Question 17

MRS?

Answer 17

Magnetic resonance spectroscopy

Question 18

PET?

Answer 18

Positron emission Tomography

Question 19

SABR?

Answer 19

Stereotactic Ablative Radiotherapy

Question 20

SBRT?

Answer 20

Stereotactic body Radiotherapy

Question 21

SRS?

Answer 21

Stereotactic Radiosurgery

Question 22

TBI?

Answer 22

Total Body Irradiation

Question 23

TMI?

Answer 23

Total Marrow Irradiation

Question 24

TSET?

Answer 24

Total Skin electron Therapy

Question 25

TPS?

Answer 25

Treatment Planning System

Question 26

What are the 8 different types of treatment couch inserts?

Answer 26

1) BrainLAB imaging couch top
2) Qfix kVue Standard
3) Qfix KVue DoseMax
4) MEDTEC model T-IL 3303
5) Universal Sandwich Panel
6) Varian Grid Insert
7) DIGNITY AIRPLATE
8) Varian Exact IGRT couch top

Question 27

How many meters of concrete is present between the maze and the Linac?

Answer 27

At least one meter (usually), some sections are 1.5m due to leakage radiation

Question 28

What is the primary barrier?

Answer 28

Think concrete on the lateral sides of the beam to stop the main beam

Question 29

What is the secondary barrier?

Answer 29

Stops the secondary scatter

Question 30

The maze is designed based on what standards?

Answer 30

Time, distance, shielding

Question 31

What is a controlled area?

Answer 31

An area that the public can not access, only people with a TLD are in this area.

Question 32

Where do you view the BEAM ON BEAM OFF sign?

Answer 32

Outside the door, and inside the room

Question 33

What are the 3 CPPs or 3C’s?

Answer 33

Correct- patient, position, site

Question 34

What is the annual occupational and public radiation limit?

Answer 34

20MV averaged over 5 years,

1MV for the public

Question 35

Why do we need to have the correct patient, position, and site?

Answer 35

The wrong patient has been treated before

Question 36

What is the QA?

Answer 36

All the procedures that ensure the consistency of the medical prescription, fulfilment of that prescription.

Why we work in pairs as a minimum

You plan something, check that its right, guarantee that its right,

Question 37

What are the three forms of Identification used?

Answer 37

Name, DOB, photograph

Question 38

What are basic treatment techniques?

Answer 38

Chest Parallel opposed Pair, tangential Beams, Four field Box, sunrise technique, Complex planning, VMAT

Question 39

What is an parallel opposed pair?

Answer 39

Usually a 0 and 180 degree beams which are parallel and opposed.

Question 40

Why wouldn’t you have a posterior beam when treating the prostate?

Answer 40

because of the rectum, can use a sunrise technique instead to avoid