There are several articles in the news section of the OCF site that shed some light on this. One is a comparison of MRI, PET and CT scans, see
http://www.oralcancerfoundation.org/news/story.asp?newsId=671 and the other, a description of the combined PET/CT scan
http://www.oralcancerfoundation.org/news/story.asp?newsId=504 and its potential value.
It appears to me that there are not enough data yet for the oncological community to recommend a specific protocol but early returns make the PET/CT combo the imaging technique of choice. - Sheldon
