Research Communications of the 27(th) ECVIM-CA Congress: Intercontinental, Saint Julian's, Malta, 14th to 16th September 2017

ESVC -O -10 RIGHT VENTRICULAR VOLUME QUANTIFICATION MEA-SURED BY REAL-TIME 3D ECHOCARDIOGRAPHY AND ECG-GATED 64 SLICE MDCT IN HEALTHY DOGS. N.L. Leblanc, K.F. Scollan. Oregon State University, Corvallis, USA Accurate assessment of right ventricular (RV) structure and function is an integral component of a complete cardiology evaluation in veterinary patients. Assessment of RV performance is particularly important in patients with pulmonary hypertension, congenital heart disease, and acquired myocardial disease affecting the RV. There is evidence in human medicine suggesting RV function is strongly associated with outcomes in many conditions. The aim of this study was to evaluate the accuracy of right ventricular volume (RVV) and function quantification using three-dimensional echocardiography (3DE) compared to electrocardiogram-gated multidetector computed tomography (ECG-gated MDCT). Six intact hound cross dogs weighing between 19.5-23.8 kg were anesthetized using a standardized protocol and spontaneous ventilation. Each dog underwent an ECG-gated MDCT and complete 3DE examination. Right ventricular end-diastolic volumes (EDV), end-systolic volumes (ESV), stroke volume (SV), and ejection fraction (EF) were measured using software specific for RVV quantification from 3DE and MDCT data sets. Correlation and levels of agreement between methods were determined, and intra-and interobserver variability was assessed for 3DE.