Linear relationship found by magnetic resonance imaging between cerebrospinal fluid volume and body weight in dogs
| Autor: | Borbála Lőrincz, Péter Sótonyi, Zsolt Abonyi-Tóth, Andras Lasso, Bianka Benedek, László Z. Reinitz, Gábor Bajzik, Örs Petneházy, Rita Garamvölgyi |
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| Rok vydání: | 2017 |
| Předmět: |
Male
040301 veterinary sciences Contrast Media Fourth ventricle Cerebral Ventricles 0403 veterinary science 03 medical and health sciences Lateral ventricles Dogs 0302 clinical medicine Cerebrospinal fluid medicine Animals Cerebral Ventriculography Compartment (pharmacokinetics) Third ventricle General Veterinary medicine.diagnostic_test business.industry Body Weight Magnetic resonance imaging 04 agricultural and veterinary sciences Anatomy medicine.disease Magnetic Resonance Imaging Hydrocephalus medicine.anatomical_structure business Myelography 030217 neurology & neurosurgery |
| Zdroj: | Acta Veterinaria Hungarica. 65:1-12 |
| ISSN: | 1588-2705 0236-6290 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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