Understanding Positron Emission Tomography

What happens when antimatter meets matter in the context of positron emission tomography?

• They combine to form a new element.

• They create a magnetic field.

• They produce a puff of energy in the form of x-rays.

• They cancel each other out with no effect.

What is the primary function of the gamma cameras in the scanner?

• To emit radioactive particles.

• To detect flashes of light from x-rays.

• To produce sound waves.

• To measure temperature changes.

Which radioactive element is commonly used to replace oxygen in glucose for PET scans?

• Carbon

• Nitrogen

• Fluorine

• Oxygen

How does the brain's consumption of glucose compare to other parts of the body?

• It uses about 20% of the body's glucose.

• It does not use glucose at all.

• It uses glucose only during sleep.

• It uses less glucose than the heart.

What is the advantage of combining PET images with CT images?

• To precisely locate tumors.

• To enhance the color of the images.

• To reduce the radiation exposure.

• To increase the speed of scanning.