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The possibility of treating deep-seated tumors with radiation depends fundamentally on the ability to “see” – that is, to image – the patient’s internal anatomy and, potentially, functional information about it. Otherwise, one would not know what to include and what to exclude from any given radiation beam, or where to aim it. The mapping of the tumor and normal tissues needs to be done so far as is possible with the patient positioned in a reproducible manner, as discussed in Chapter 7; otherwise the anatomy at the time of treatment may well have shifted relative to where it was at the time of imaging.

Keywords

Magnetic Resonance Image Positron Emission Tomography Target Volume Image Registration Compute Tomography Study 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer Science+Business Media, LLC 2007

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