Abstract
This chapter focuses on the various types of imaging techniques used for evaluating head and neck cancer, such as computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET). These methods can be complementary, although each has its strengths and weaknesses. Cross-sectional imaging with CT and MRI provides detailed anatomic information essential for treatment planning. New methods of metabolic imaging such as PET can make a significant contribution to the management of head and neck cancer as well. Improved detection of unknown primaries and local nodal disease by PET may alter initial therapeutic plans. The use of PET for assessing therapy is in its infancy but has the potential to allow physicians to have clearer information about the results of their treatment. Detecting early recurrence more accurately with PET may provide a means of improving the dismal survival rate from head and neck cancer recurrence.
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