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Tracy Gieger, DVM, DACVIM, DACVR

Clinical Professor, Radiation Oncology

Office: 919.513.6322

Dr. Gieger earned her DVM from Louisiana State University, and is board certified in three medical specialties: Internal Medicine, Medical Oncology and Radiation Oncology. She worked in a mix of both private specialty hospitals and university-based veterinary teaching hospitals before joining NC State. Aside from bringing a wealth of cancer-related expertise to our clinic, Dr. Gieger also has a variety of interests and hobbies outside of work, including reading, fashion and home decorating, crafting cocktails and cooking.

You can find additional publications at Google Citations.


View online at Google Citations
Diplomate, American College of Veterinary Internal Medicine
Diplomate, American College of Veterinary Radiology
Spontaneous Animal Disease Models, Veterinary Cancer Care
Radiation treatment planning and delivery
Canine nasal tumors
Imaging as it relates to radiation oncology

  • (2017) Outcomes of Spatially Fractionated Radiotherapy (GRID) for Bulky Soft Tissue Sarcomas in a Large Animal Model.Nolan MW, Gieger TL, Karakashian AA, Nikolova-Karakashian MN, Posner LP, Roback DM, Rivera JN, Chang S. | Technol Cancer Res Treat. 2017 Jan 1:1533034617690980. doi: 10.1177/1533034617690980. [Epub ahead of print]PMID: 28168937.
  • (2017) Pilot study to determine the feasibility of radiation therapy for dogs with right atrial masses and hemorrhagic pericardial effusion.Nolan MW, Arkans MM, LaVine D, DeFrancesco T, Myers JA, Griffith EH, Posner LP, Keene BW, Tou SP, Gieger TL. | J Vet Cardiol. pii: S1760-2734(17)30033-4. doi: 10.1016/j.jvc.2016.12.001. [Epub ahead of print] Mar 7, 2017.
  • (2017) The Impact of Carboplatin and Toceranib Phosphate on Angiogenesis and Survival in Canine Osteosarcoma.Gieger T, Nettifee-Osborne J, Johannes C, Clarke DM, Hallman B, Nolan MW, Williams LE. | Canadian Journal of Veterinary Research in press, June 2017. Role: first author
  • (2017) Linac-based stereotactic radiation therapy for canine non-lymphomatous nasal tumors: 31 cases (2013-2016).Gieger T, Nolan MW. | Veterinary Comparative Oncology in press, June 2017. Role: first author
  • (2016) Detection of synchronous primary tumors and previously undetected metastases in 736 dogs with neoplasia undergoing CT scans for diagnostic, staging, and/or radiation treatment planning purposes.Magestro L, Gieger T. | 2 MAY 2016, DOI: 10.1111/vco.12201 Role: study design and interpretation of results, primary mentor for resident (Magestro), co-author of manuscript, corresponding author
  • (2015) Misadministration of Radiation Therapy in Veterinary Medicine: A Case Report and Literature Review.Arkans MM, Gieger T Nolan MW. | Vet Comp Oncol 14 JUL 2015, DOI: 10.1111/vco.12161 Role: co-author and mentor for resident
  • Re-irradiation of canine nasal carcinomas: 37 cases.Gieger TL, Siegel S, Rosen K, Jackson D, Ware KG, Shiomitsu K. | Submitted to the Journal of the American Animal Hospital Association, in press; Feb 2013.
  • In vitro characterization of docetaxel as a radiosensitizer in canine and feline cancer cell lines.Balkman CE, Gieger TL, Zgola M, Lewis LD, McEntee M. | Open journal of Veterinary Medicine, SciRes Dec 2012. Published online.
  • Three-dimensional conformal versus non-graphic radiation treatment planning for apocrine gland adenocarcinoma of the anal sac in 18 dogs (2002-2007).Keyerleber MA, Gieger TL, Erb HN, Thompson MS, McEntee MC. | Vet Comp Oncol 2012; 10(4), 237-45.
  • The value of echocardiography as a screening tool prior to doxorubicin administration: 101 cases.Ratterree W, Gieger T, Pariaut R, Saelinger C, Strickland K. | J Am An Hosp Assoc 48:89-96, Mar/Apr 2012.
  • (2015) Detection of comorbidities and synchronous primary tumors via thoracic radiography and abdominal ultrasonography and their influence on treatment outcome in dogs with soft tissue sarcomas, primary brain tumors, and intranasal tumors.Bigio Marcello A, Gieger T, Jiminez D, Granger A. | Vet Comp Oncol 2015; 13(4), 433-42. Role: study design and interpretation of results, primary mentor for resident (Bigio), co-author of manuscript
  • (2013) Re-irradiation of canine nasal carcinomas treated with coarsely fractionated radiation protocols: 37 cases.Gieger TL, Siegel S, Rosen K, Jackson D, Ware KG, Kiselow M, Shiomitsu K. | J Am An Hosp Assoc 2013 49: 318-324. Role: first author
  • (2013) Prospective evaluation of biweekly streptozotocin in 19 dogs with insulinoma.Northrup NC, Rassnick KM, Gieger TL, Kosarek CE, McFadden CW, Rosenberg MP. | J Vet Int Med 2013; 27(3), 483-90. Role: co-author, treated patients in study