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Photo: Rachel E Pollard

Rachel E Pollard- DVM, PhD
Associate Professor
Surgical & Radiological Sciences

1122B Tupper Hall
Davis, CA 95616

+1 530 752 2511


Research Focus

I have a number of unrelated research interests but will outline the main 3.  My mine research focus involves the use of quantitative imaging techniques to assess vascularity in tumors undergoing therapy.  I have focused on contrast ultrasound and dynamic contrast CT as the 2 modalities with which to do this.   Although my previous work in this area has mostly involved rodent models, I am redirecting toward using clinical large animal models of spontaneous neoplasia as a translational mechanism to mainstream these techniques into people.

I also have a strong interest in functional imaging using fluoroscopy.  The 2 areas where I have built a reputation for myself are videofluoroscopic esophagography and fluoroscopic assessment of airway collapse.  Many of my more recent publications have been in these areas and I anticipate continuing in these directions in the future.

Specialty Focus

Diagnostic Imaging


1996 DVM , Washington State University, Pullman WA
2005 PhD Comparative Pathology, University of California, Davis, CA

Honors and Awards

2012 Faculty Award from the graduating class of 2012, University of California, Davis, School of Veterinary Medicine
2009 Faculty commencement speaker
2006 Favorite Teacher Award, Class of 2008 annual award ceremony, UC Davis School of Veterinary Medicine
2000 Best resident authored abstract
2000 Resident authored paper award
1996 Excellence in small animal internal medicine


Diplomate American College of Veterinary Radiology
CA state veterinary license

Active Research Grants

Co-Investigator, Assessment of the iliosacral lymphatic center in dogs with anal sac gland carcinoma using indirect computed tomographic lymphography, Michele Steffey (Principal Investigator), Center for Companion Animal Health

Co-Investigator, Specific and high-resolution ultrasound cancer imaging, Kathy Ferrara (Principal Investigator), NIH

Most Recent 10 Publications

  • Link Icon 2012 Jones BG, Pollard RE. Relationship between radiographic evidence of tracheobronchial lymph node enlargement and definitive or presumptive diagnosis Vet Radiol Ultrasound,
  • Link Icon 2012 Jepsen-Grant K, Pollard RE, Johnson LR. Vertebral Heart Score in Eight Dg Breeds Vet Radiolo Ultrasound,
  • Link Icon 2012 Singh MK, Johnson LR, Kittleson MD, Pollard RE Bronchomalacia in dogs with myxomatous mitral valve degeneration J Vet Intern Med,
  • Link Icon 2011 Pollard RE, Puchalski SM Reaction to intraarterial ionic iodinated contrast medium administration in anesthetized horses Vet Radiol Ultrasound,
  • Link Icon 2011 Laurenson MP, Zwingenberger AL, Cissell DD, Johnson LR, McPeters MJ, Spriet MP, Taylor SL, Pollard RE. Computed tomography of the pharynx in a closed vs open mouth position Vet Radiol Ultrasound,
  • Link Icon 2011 Pollard RE, Larson RF Dynamic contrast enhanced computed tomography for the quantification of tumor response to vasoactive agents in a rat tumor model: preliminary results CMMI,
  • Link Icon 2010 Cherbinsky O, Westropp JL, Tinga S, Jones B, Pollard R Ultrasonographic features of grass awns in the urinary bladder Vet Rad and Ultrasound,
  • Link Icon 2010 Sykes JE, Marks SL, Mapes S, Schultz RM, Pollard RE, Tokarz D, Pesavento PP, Lindsay L, Foley JE Salmon poisoning disease in dogs: 29 cases J Vet Intern Med,
  • Link Icon 2010 Johnson LR, Pollard RE Tracheal collapse and bronchomalacia in dogs: 58 cases (7 /2001-1 /2008) J Vet Intern Med,
  • Link Icon 2010 Pollard RE, Reilly CM, Uerling MR, Wood FD, Feldman EC Cross-sectional imaging characteristics of pituitary adenomas, invasive adenomas and adenocarcinomas in dogs: 33 cases (1988-2006) J Vet Int Med,

Most Recent 5 Book Chapters

2010 Pollard RE: CT contrast media and application; intravenous contrast media, Schwarz T, Saunders J, (ed), Veterinary Computed Tomography. .

2009 Pollard R, Herrgesell E: Basic diagnoses with abdominal ultrasound, Ettinger SJ, Feldman EC., (ed), IN: Textbook of Veterinary Internal Medicine, 7th Edition. 373-376.

2006 Wisner ER, Pollard RE: Orthopedic diseases of young and growing dogs and cats (DE Thrall, ed.), , Textbook of Veterinary Diagnostic Imaging 5th edition. 268-83.