Determination of the cardiovertebral index in normal ornamental rabbits
https://doi.org/10.52419/issn2072-2419.2025.1.265
Abstract
The cardiovertebral index is the most accurate system for estimating the size of the cardiac silhouette on radiographs for assessing cardiomegaly in small pets (cats and dogs). However, the study of VHS in dwarf rabbits remains insufficiently studied, currently there are no publications with indexes for minor dwarf rabbits. The article presents anatomical features of the heart and thoracic spine of ornamental rabbits. The research was conducted at the Department of Animal Anatomy of the St. Petersburg State University of Veterinary Medicine and the Kotonai network of veterinary centers. The X-ray images of fifty decorative rabbits of various breeds served as the material for the study. The average weight of the studied rabbits was 1.10±0.10 kg. To study the features of the anatomical boundaries of the heart on the X-ray, a comparative anatomical method was used, followed by an analysis of the data obtained in the Radiant program. As a result of the research, it was found that the thoracic spine of rabbits consists of 12 thoracic vertebrae. The thorax is the bony skeleton of the thoracic cavity, in which some tubular and parenchymal organs are located. X-ray examination allows you to take the necessary measurements and deduce the cardiovertebral index together with the Buchanan coefficient for an objective assessment of heart changes during X-ray examination. In our study, based on the linear parameters of the heart silhouette on chest X-rays in decorative rabbits, we derived and adapted the Buchanan coefficient and VHS. These indices make it possible to objectively assess the boundaries of the heart of ornamental rabbits in normal conditions, as well as to detect possible pathologies of the cardiovascular system, such as cardiomegaly.
About the Authors
E. S. Suslov
Saint Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Suslov E.S. – 3rd year student
S. I. Melnikov
Saint Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Melnikov S.I. – PhD. Doctor of Veterinary Sciences, Assistant Professor of the Department of Animal Anatomy
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Review
For citations:
Suslov E.S., Melnikov S.I. Determination of the cardiovertebral index in normal ornamental rabbits. International Journal of Veterinary Medicine. 2025;(1):265-270. (In Russ.) https://doi.org/10.52419/issn2072-2419.2025.1.265
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