The sinonasal communication in the horse: examinations using computerized three-dimensional reformatted renderings of computed-tomography datasets.
Authors: Brinkschulte Markus, Bienert-Zeit Astrid, Lüpke Matthias, Hellige Maren, Ohnesorge Bernhard, Staszyk Carsten
Journal: BMC veterinary research
Summary
# Sinonasal Communication in the Horse: A Three-Dimensional Anatomical Study Understanding the spatial anatomy of sinonasal communications is crucial for managing equine sinusitis, a condition where obstruction of these drainage pathways is thought to be central to disease development—a principle well established in human medicine but poorly characterised in horses. Researchers analysed CT datasets from 19 horses aged 2–26 years, creating three-dimensional reconstructions through manual and semi-automated segmentation and validating their 2D imaging against frozen cadaveric sections to ensure anatomical accuracy. By mapping the precise spatial relationships between the nasal cavity and paranasal sinuses, this work provided the first detailed three-dimensional characterisation of equine sinonasal drainage anatomy, establishing a reference framework for understanding how blockage of these communications contributes to sinusitis development. For practitioners managing chronic sinusitis cases, these anatomical insights offer a clearer picture of where obstructions commonly occur and why certain drainage pathways may be more prone to compromise than others. This foundation should inform both diagnostic interpretation of CT images and the rationale behind surgical approaches to re-establish effective sinonasal drainage in affected horses.
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Practical Takeaways
- •3D CT imaging with validated segmentation provides clinicians with detailed anatomical understanding of sinonasal pathways relevant to sinusitis diagnosis and treatment planning
- •Knowledge of normal sinonasal communication anatomy from this study enables better identification of obstruction sites that may precipitate sinusitis development
- •This anatomical baseline supports improved surgical planning for cases where sinonasal obstruction is suspected as a sinusitis cause
Key Findings
- •3D CT reformatted renderings successfully visualized equine sinonasal communication pathways in 19 horses aged 2-26 years
- •2D CT images were validated against frozen cadaveric sections, confirming anatomical accuracy of imaging approach
- •Manual and semi-automated segmentation techniques enabled detailed spatial analysis of nasal cavity and paranasal sinus relationships