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Comparison of cardiac measurements by multi-detector computed tomography angiography and transthoracic echocardiography in English bulldogs
Conclusion Multi-detector-CT ECG-gated cardiac angiography is possible in sedated, non-intubated English bulldogs. Differences were found between some cardiac dimensions as measured by TTE in the awake dog and compared with sedated CTA, indicating the two methodologies are not equivalent. Sedated, non-intubated CTA yielded high-quality imaging with strong intraobserver and interobserver measurement repeatability in English bulldogs.
Source: Journal of Veterinary Cardiology - November 25, 2017 Category: Veterinary Research Source Type: research

Comparison of left and right ventricular stroke volume of dogs calculated on the basis of morphology and blood flow determined by use of cardiac magnetic resonance imaging.
CONCLUSIONS AND CLINICAL RELEVANCE In contrast to quantification based on blood flow, calculation on the basis of morphology for the short-axis plane significantly underestimated SV, probably because of through-plane motion and complex right ventricular anatomy. PMID: 28945128 [PubMed - in process]
Source: American Journal of Veterinary Research - September 27, 2017 Category: Veterinary Research Authors: Dennler M, Richter H, Matos JN, Toaldo MB, Campagna IU, Glaus TM, Kircher PR Tags: Am J Vet Res Source Type: research

Cardiac magnetic resonance imaging of patent ductus arteriosus in three dogs
Patent ductus arteriosus (PDA) is the most common congenital cardiovascular disorder in dogs and requires an accurate diagnosis for an appropriate treatment. Cardiac MRI (cMRI) has been reported as a method for characterization of canine thoracic vasculature. However, to the authors’ knowledge, no published studies describe evaluation of canine PDA through cMRI. Three dogs were selected for this exploratory study. Electrocardiogram gating and breath‐hold techniques were performed using a 3T MR scanner. Both black blood imaging and bright blood cine acquisitions were performed. Quantification of stroke volume (SV) and s...
Source: Veterinary Radiology and Ultrasound - November 19, 2016 Category: Veterinary Research Authors: Youngjae Lee, Jaihyun Jung, Junyong Park, Jiyoon Jeong, Seokho Jeon, Sunyoung Park, Jinhwa Chang, Ji ‐Houn Kang, Chulhyun Lee, Dongwoo Chang Tags: Original Investigation Source Type: research

Assessment of left ventricular volume and function in healthy dogs by use of one-, two-, and three-dimensional echocardiography versus multidetector computed tomography.
CONCLUSIONS AND CLINICAL RELEVANCE Values for EDV and ESV obtained by use of 3-D echocardiography, including RTBPE and RT3DE, had the highest correlation with slight underestimation, compared with values obtained by use of MDCT. This was similar to results for 3-D echocardiography in human medicine. PMID: 27805446 [PubMed - in process]
Source: American Journal of Veterinary Research - October 31, 2016 Category: Veterinary Research Authors: Scollan KF, Stieger-Vanegas SM, Sisson DD Tags: Am J Vet Res Source Type: research