Magnetic resonance imaging characteristics of equine head disorders: 84 cases (2000-2013).

This article discusses the use of magnetic resonance imaging (MRI) for diagnosing various disorders in the horse’s head. Over a period of 13 years, MRI has been found to be a useful tool for locating lesions, determining their size, and understanding their impact on surrounding structures, despite some limitations in detecting neurological abnormalities.

MRI Techniques in Veterinary Medicine: A Multi-Center Study

• The article presents a retrospective multi-center study that primarily aims to describe MRI characteristics of head disorders in horses. This study was conducted over a span of 13 years.
• The equine head, with its complex anatomy, poses challenges for diagnosis and treatment, making it necessary to use advanced tomographic imaging techniques like computed tomography (CT) or MRI. The latter was the focus of this research.
• Out of the horses imaged in the specified period, 84 met the criteria for inclusion in the study. The disorders were classified into neurological (found in 65 horses), sinonasal (14 horses), and soft tissue disorders (5 horses).

The Accuracy and Utility of MRI

• The study reports that MRI accurately depicted the anatomy and permitted identification of the primary lesion and related changes. This shows that MRI can be an effective tool in providing clear and detailed images of structures within the head.
• A strong correlation was observed between findings from MRI and intraoperative or postmortem results, further supporting the reliability of MRI as a diagnostic tool.
• The MRI clearly showed the exact location, size, and relationship with surrounding structures of the lesions. Knowing these details is crucial for making precise diagnoses and planning effective treatments.

Limitations in Neurological Disorder Detection

• Within the neurological group, there were 45 horses with no abnormalities identified through MRI. Out of these, 29 had a history of recurrent seizures, which indicate an underlying neurological condition – cryptogenic epilepsy.
• Despite this limitation, MRI remained a valuable tool for diagnosing a wide range of head disorders in horses. It also had the flexibility of being used with either low-field or high-field magnets, which offers different levels of resolution and detail.