Abstract

Image resolution is paramount when contouring complex anatomy, as in head and neck planning. It is notable that when diagnostic radiologists perform a computed tomography scan of the neck, they always use a small field of view because it gives the best image resolution. When planning for radiation treatment, however, it is also necessary to have a large field of view to provide a comprehensive external contour that allows for radiation dose calculation. We present a simple method to obtain both small and large fields of view at the time of computed tomography simulation.

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