CMD Treatment Planning & Dosimetry

Question 1

What is the primary goal of treatment planning in radiation therapy?

Accepted Answer

Optimize tumor dose and minimize healthy tissue exposure

Answer

Maximize radiation exposure

Answer

Minimize patient comfort

Answer

Increase the number of treatment sessions

Question 2

What does the term 'dosimetry' refer to in radiation therapy?

Accepted Answer

Measuring the radiation dose delivered to the tumor and healthy tissues

Answer

The design of the treatment plan

Answer

Monitoring patient responses to treatment

Answer

Increasing the total treatment duration

Question 3

Which imaging technique is commonly used to assist in treatment planning for radiation therapy?

Accepted Answer

CT scans

Answer

X-ray

Answer

Ultrasound

Answer

MRI scans

Question 4

What is the purpose of a treatment field in radiation therapy?

Accepted Answer

To limit the radiation exposure to healthy tissues

Answer

To restrict radiation to the tumor site

Answer

To map the patient's internal structures

Answer

To increase the intensity of radiation

Question 5

What does the term 'isodose curve' refer to?

Accepted Answer

A curve showing the range of radiation exposure in different tissues

Answer

A curve representing areas of tumor growth

Answer

A map of patient movement during treatment

Answer

A representation of the patient's anatomy

Question 6

Which factor is most critical in determining the radiation dose distribution in a treatment plan?

Accepted Answer

The tumor's size, location, and surrounding tissues

Answer

The patient's weight

Answer

The patient's age

Answer

The number of treatments

Question 7

What is the purpose of using bolus in radiation therapy?

Accepted Answer

To ensure uniform radiation exposure to the tumor

Answer

To shield healthy tissues from radiation

Answer

To increase the depth of the radiation dose

Answer

To reduce the surface dose of radiation

Question 8

How does immobilization impact the treatment planning process?

Accepted Answer

It helps maintain the tumor's position during treatment

Answer

It is unnecessary for planning

Answer

It reduces the amount of radiation required

Answer

It has no effect on treatment accuracy

Question 9

What is the role of a medical dosimetrist in radiation therapy?

Accepted Answer

To design and calculate the radiation dose for treatments

Answer

To administer radiation treatments

Answer

To monitor the patient's vital signs

Answer

To interpret medical imaging results