Drees R, Forrest L J, Chappell R
Department of Surgical Sciences, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53705-1102, USA.
J Small Anim Pract. 2009 Jul;50(7):334-40. doi: 10.1111/j.1748-5827.2009.00729.x. Epub 2009 Jun 5.
Canine intranasal neoplasia is commonly evaluated using computed tomography to indicate the diagnosis, to determine disease extent, to guide histological sampling location and to plan treatment. With the expanding use of magnetic resonance imaging in veterinary medicine, this modality has been recently applied for the same purpose. The aim of this study was to compare the features of canine intranasal neoplasia using computed tomography and magnetic resonance imaging.
Twenty-one dogs with confirmed intranasal neoplasia underwent both computed tomography and magnetic resonance imaging. The images were reviewed retrospectively for the bony and soft tissue features of intranasal neoplasia.
Overall computed tomography and magnetic resonance imaging performed very similarly. However, lysis of bones bordering the nasal cavity and mucosal thickening was found on computed tomography images more often than on magnetic resonance images. Small amounts of fluid in the nasal cavity were more often seen on magnetic resonance images. However, fluid in the frontal sinuses was seen equally well with both modalities.
We conclude that computed tomography is satisfactory for evaluation of canine intranasal neoplasia, and no clinically relevant benefit is gained using magnetic resonance imaging for intranasal neoplasia without extent into the cranial cavity.
犬鼻内肿瘤通常采用计算机断层扫描进行评估，以辅助诊断、确定疾病范围、指导组织学采样位置及制定治疗方案。随着磁共振成像在兽医学中的应用不断增加，该技术最近也被用于相同目的。本研究旨在比较计算机断层扫描和磁共振成像在犬鼻内肿瘤中的特征。
21只确诊为鼻内肿瘤的犬接受了计算机断层扫描和磁共振成像检查。对图像进行回顾性分析，以观察鼻内肿瘤的骨质和软组织特征。
总体而言，计算机断层扫描和磁共振成像表现非常相似。然而，与鼻腔相邻的骨质溶解和黏膜增厚在计算机断层扫描图像上比在磁共振图像上更常见。鼻腔内少量液体在磁共振图像上更常被观察到。然而，两种检查方式对额窦内液体的显示效果相当。
我们得出结论，计算机断层扫描对于评估犬鼻内肿瘤是令人满意的，对于未侵犯颅腔的鼻内肿瘤，使用磁共振成像并无临床相关益处。
