Tracy L. Gieger

Papers

Total Citations

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About

Tracy L. Gieger is a leading veterinary radiation oncologist whose research focuses on stereotactic radiation therapy (SRT) for canine cancers, particularly challenging tumors of the nasal cavity and heart base. Her major contributions include pioneering the use of linac-based SRT to treat non-lymphomatous nasal tumors in dogs, demonstrating that this precise, high-dose technique can achieve durable local control with minimal toxicity. In a landmark study of 29 cases (2017), she showed that SRT offers a viable alternative to conventional fractionated radiation, with many dogs surviving beyond one year. Gieger also advanced the field by applying stereotactic body radiation therapy (SBRT) to heart-base tumors in six dogs (2018), a site traditionally considered high-risk for radiation, proving that careful planning can enable safe, effective treatment. Her work has garnered significant attention, with her nasal tumor paper cited over 50 times, reflecting its impact on veterinary oncology practice. By translating human stereotactic techniques to companion animals, Gieger has not only improved outcomes for canine patients but also provided a valuable comparative oncology model for human cancer research. Her studies underscore the promise of SRT in expanding treatment options for anatomically complex tumors.