Imaging or imagining? Is equine diagnostic imaging evidence based?

This research article is an overview of the development and use of diagnostic imaging in equine veterinary medicine. It looks at the progression of imaging technology, its contribution to understanding disease mechanisms in horses, and the importance of evidence-based application of these technologies.

Advancement of Equine Diagnostic Imaging

• The article traces the evolution of diagnostic imaging in equine medicine from basic ultrasounds to advanced technologies like MRI (Magnetic Resonance Imaging) and CT (Computed Tomography) scans. This has been largely enabled by the ‘digital revolution’ that provides computational power to handle large image datasets.
• Advancements in hardware, such as improved imaging quality and user-friendly devices, have made these technologies more accessible and cheaper. They are now extensively used in equine ambulatory practices for on-site imaging.
• The introduction of MRI and CT scans for standing horses has been noted as a significant advancement in the field. This negates the risk and cost associated with general anesthesia, which was previously required.

Imaging Modalities and Understanding of Diseases

• Imaging technologies have greatly enhanced the understanding of equine diseases. For instance, MRI has revolutionized the understanding of foot problems in horses, making it possible to precisely diagnose the affected structure and type of pathology.
• CT scans have improved the diagnosis of head disorders such as periapical abscesses, where radiographs are less effective.
• The research mentions how scientific literature about equine diagnostic imaging has been growing rapidly. This includes studies that evaluate the diagnostic value of imaging technologies in answering specific clinical questions – their sensitivity and specificity.

The Future of Equine Diagnostic Imaging

• While acknowledging the merits of advanced imaging technologies, the article underlines the importance of expert knowledge in interpreting these images.
• Despite advances, radiography continues to be the most commonly used imaging modality in equine diagnostics. However, MRI, scintigraphy, and CT scans have helped enhance radiographic interpretation skills.
• Good education, continuous professional development, and a strong evidence base on the strengths and limitations of imaging techniques are necessary to use these technologies efficiently and effectively.
• The article ends on the note that habits of thought need to catch up with technical advancements to ensure veterinary wisdom doesn’t lag behind.