Determining the optimal treatment course and predicting outcomes may get easier in the future for patients with head and neck sqaumous cell carcinomas (HNSCCs) with the use of an investigational imaging agent. Research published in the October issue of The Journal of Nuclear Medicine shows that positron emission tomography (PET) imaging with 3'-deoxy-3’F-18-fluorothymidine (18-F-FLT) during treatment and early follow-up has the potential to predict therapeutic responses and identify patients needing close follow-up to detect persistent or recurring disease.