Medical Applications

Question 1

What are the categories of users for radioactive material at an MTF?

Answer 1

*Diagnostic
*Therapeutic

Question 2

What are some are some diagnostic applications of radioactive material?

Answer 2

Radiography
Nuclear medicine

Question 3

Examples of radiography?

Answer 3

X-ray, fluoroscopy, mammography, and computed tomography (CT).

Question 4

Examples of Nuclear Medicine

Answer 4

Positron emission tomography (PET) and Gamma scintillation cameras

Question 5

What are therapeutic applications of radioactive material?

Answer 5

• Radiation Oncology
• Radiation brachytherapy
• Nuclear medicine therapy

Question 6

Are ideal traits for a radiopharmaceutical?

Answer 6

*Localized in the specific organ
*Low toxicity
*Chemical stable inside the body and outside.
*Should emit a high abundance of clinically useful photons
*Should have gamma emitters with high energy
Minimal effective half life

Question 7

When using a radionuclide for imaging, what should the choice be based on?

Answer 7

*Minimizing radiation dose to patient
*The detection characteristics of modern-day instrumentation

Question 8

Most common used radioisotope In radio-pharmaceuticals?

Answer 8

Technetium-99m (99mTc)

Question 9

What is I-131 and I-123?

Answer 9

Iodine-131 and Iodine-123.

Question 10

What is the half life of technetium-99m?

Answer 10

6 hours

Question 11

What is Technetium-99m energy level?

Answer 11

140 keV gamma