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Pet/CT Following Intensity-Modulated Radiation Therapy for Primary Lung Tumor in a Dog

Elizabeth A. Ballegeer, Lisa J. Forrest, Robert Jeraj, et al.

Veterinary Radiology & Ultrasound, 2006. 47(2): p.228-233.

A primary lung tumor in a dog treated with intensity-modulated radiation therapy was imaged approximately 6 weeks and 1-year posttreatment with combined positron emission tomography (PET) and computed tomography, utilizing the radiotracers 18F-fluorodeoxyglucose and 18F-fluorothymidine. These two tracers allowed discrimination of tumor from inflammation, and demonstrated spread of tumor along airways over time after treatment. Fusion of functional imaging with anatomic imaging is a useful tool, particularly in the field of oncology, with the potential for PET markers that delineate tumor from normal or reactive tissue, and potential or actual response to therapy.