S Positron Emission Tomography By Austin Cheung and Tony Jin
Positron emission tomography
Dec 21, 2014
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S
Positron Emission Tomography
By Austin Cheung and Tony Jin
About
Radiology procedure
Used by oncologists, neurologists, neurosurgeons, cardiologists, etc.
How It Works
Inject radioactive substance (radionuclide
Gamma rays are released
Machine detects rays
Rays form image
Why It Works
Radionuclide release gamma rays when metabolized
Parts of brain metabolize at different rates according to activity
Cancer
Cancer cells consume the sugar
Release photons that are captured by ring detector
3D image is formed, showing cancer tissues
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