12.01.2013 Views

PET/CT for radiotherapy planning of head-‐neck cancer

PET/CT for radiotherapy planning of head-‐neck cancer

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What does FDG <strong>PET</strong> show ?<br />

The signal comes from<br />

! Cells that proliferate<br />

! Cells that have de-­‐differen3ated<br />

! Cells that have high Glut-­‐1 expression<br />

! Cells that are hypoxic<br />

<strong>PET</strong> iden3fies voxels that<br />

contain a lot <strong>of</strong> cells, that<br />

tend to be radioresistent<br />

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