Theses and Dissertations



Seitz, Marc A.

Committee Member

Lee, Alison M.

Committee Member

Thomason , John M.

Date of Degree


Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access


Veterinary and Biomedical Science (Veterinary Medical Research)

Degree Name

Master of Science (M.S.)


College of Veterinary Medicine


Department of Clinical Sciences


The use of brightness mode (B-mode) ultrasound (US), color Doppler (CD), and power Doppler (PD) can all help evaluate and characterize splenic lesions. A relatively new non-Doppler technology used to evaluate vasculature called B-Flow helps overcome certain limitations of CD and PD that affect visualization of blood flow. There are no studies describing the use of B-Flow characterizing splenic lesions in dogs. A total of 97 splenic lesions were evaluated. Splenic lesions that were larger than 2 cm, distorted the splenic capsule, or accompanied free fluid were significantly associated with malignancy. Lesions with tortuous internal vessels on CD or B-Flow were significantly associated with malignancy. Lesions with large internal vessels compared to external vessels on PD and B-Flow were significantly associated with malignancy. In conclusion, these B-mode and vascular characteristics on CD, PD and B-flow may help clinicians prioritize malignant etiologies over benign ones and prompt more aggressive diagnostic recommendations.