Nuclear Medicine Technologies

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Presentation transcript:

Nuclear Medicine Technologies

What is a positron? A positron is a form of anti-matter with a positive charge. When an electron and a positron meet, they are both annihilated (destroyed.) Two gamma rays are emitted in different directions.

Positron Emission Tomography A patient is given a tracer that is attached to a sugar molecule. Rapidly growing cells need more sugar, so they will take in more of the tracer.

Positron Emission Tomography The PET tracks the gamma ray pair and uses this to show where unusual cell growth is occurring. Also can be used to monitor brain function PET brain scan

Magnetic Resonance Imaging Also called nuclear magnetic resonance. Has no radiation involved Measures magnetic fields sent out by the nucleus when stimulated by radio waves No health risks unless you have metal in your body

Magnetic Resonance Imaging Excellent at viewing soft tissues in the body