Computed tomography (CT) with CT myelography is a novel imaging modality for detailed anatomical imaging and precise diagnosis of equine cervical spine pathology. Computed tomography of the complete cervical vertebral column in live horses has not been reported previously. The objectives of this study were to describe the diagnostic utility of CT and CT myelography in horses, the technique, the type and distribution of lesions and procedure-related complications. Medical records of horses subjected to cervical CT and CT myelography between 2013 and 2018 were reviewed for this retrospective descriptive study. The examinations were performed with horses in lateral recumbency using a large-bore CT scanner. In total, 180 horses were included. The study population consisted of 79.4% Warmblood breed horses, 68.3% were male, the mean age was 7.1 years (range 21 days–21 years), and the bodyweight ranged from 61 to 717 kg (mean 530 kg). Pathology of the cervical vertebral column was identified in 176/180 horses (97.8%) and included osteoarthritis of the articular process joints in 83%. Impingement and compression of the spinal cord were detected using CT myelography in 125/147 horses (85%). Pathology was localised caudal to C5 in 90%. The mean ± s.d. anaesthesia time was 34 ± 19 min and 52 ± 13 min for CT examinations, excluding and including myelography, respectively. Adverse events occurred in 7.2% of the examined horses. The caudal location of the majority of lesions emphasises the importance of good-quality imaging of the most caudal cervical vertebrae in horses with suspected cervical spinal pathology and/or spinal cord compression. Computed tomography imaging enables identification of bony and soft tissue lesions of the entire cervical vertebral column in live, large-breed adult horses.

中文翻译：

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马颈椎计算机断层扫描和脊髓造影：180 例（2013-2018）

计算机断层扫描 (CT) 与 CT 脊髓造影是一种新颖的成像方式，用于详细解剖成像和精确诊断马颈椎病理。以前没有报道过活马完整颈椎的计算机断层扫描。本研究的目的是描述 CT 和 CT 脊髓造影对马的诊断效用、技术、病变的类型和分布以及与手术相关的并发症。本回顾性描述性研究回顾了 2013 年至 2018 年间接受颈椎 CT 和 CT 脊髓造影的马的医疗记录。使用大口径 CT 扫描仪对马进行侧卧检查。总共包括180匹马。研究人群由 79.4% 的温血种马组成，68.3% 为雄性，平均年龄为 7 岁。1岁（21天～21岁），体重61～717公斤（平均530公斤）。在 176/180 匹马 (97.8%) 中鉴定出颈椎的病理学，其中 83% 包括关节突关节的骨关节炎。在 125/147 匹马 (85%) 中使用 CT 脊髓造影检测到脊髓的撞击和压迫。90% 的病理学位于 C5 尾部。CT检查的平均±sd麻醉时间分别为34±19分钟和52±13分钟，不包括和包括脊髓造影。7.2% 的受检马发生了不良事件。大多数病变的尾部位置强调了对疑似颈椎病变和/或脊髓压迫的马最尾部颈椎进行高质量成像的重要性。