Linear relationship found by magnetic resonance imaging between cerebrospinal fluid volume and body weight in dogs

László Z. Reinitz, Gábor Bajzik, Rita Garamvolgyi, Bianka Benedek, Ors Petnehazy, András Lasso, Zsolt Abonyi-Toth, Borbála Lorincz, Péter Sotonyi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Despite numerous studies on cerebrospinal fluid (CSF) and its importance during hydrocephalus or myelography, no reliable values exist about its overall volume in dogs. In this study, our aim was to measure the intracranial (IC) volume of CSF in dogs and assess its possible relationship with body size and the symmetry of the lateral ventricles. We ran a 3D magnetic resonance imaging (MRI) sequence on the central nervous system of 12 healthy, male mongrel dogs between 3-5 years of age and 7.5-35.0 kg body weight. A validated semiautomatic segmentation protocol was implemented to segment the CSF and measure its volume. Values for the volume of the ventricular compartment were between 0.97 and 2.94 ml, with 62.1 ± 11.7% in the lateral ventricles, 17.6 ± 4.9% in the third ventricle, 4.9 ± 1.6% in the aqueductus mesencephali and 15.5 ± 6.6% in the fourth ventricle. In 11 cases a significant asymmetry was found between the lateral ventricles. The results suggest that it may be normal for a dog to have one of the lateral ventricles 1.5 times larger than the other. The correlation between body weight and CSF volume was linear, indicating that the current dosage protocols for myelography, based on a hypothetical proportional relationship with body weight, may have to be revised.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalActa veterinaria Hungarica
Volume65
Issue number1
DOIs
Publication statusPublished - Jan 1 2017

Keywords

  • Cerebrospinal fluid
  • Dog
  • Hydrocephalus
  • MRI
  • Volume

ASJC Scopus subject areas

  • veterinary(all)

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    Reinitz, L. Z., Bajzik, G., Garamvolgyi, R., Benedek, B., Petnehazy, O., Lasso, A., Abonyi-Toth, Z., Lorincz, B., & Sotonyi, P. (2017). Linear relationship found by magnetic resonance imaging between cerebrospinal fluid volume and body weight in dogs. Acta veterinaria Hungarica, 65(1), 1-12. https://doi.org/10.1556/004.2017.001