De Rycke Lieve M, Gielen Ingrid M, van Bree Henri, Simoens Paul J
Department of Medical Imaging, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
Am J Vet Res. 2002 Oct;63(10):1400-7. doi: 10.2460/ajvr.2002.63.1400.
To use computed tomography (CT) to provide a detailed description of elbow joint structures in clinically normal dogs.
6 clinically normal adult mixed-breed dogs weighing 24 to 37 kg and one 12-month-old Labrador Retriever weighing 27 kg.
To perform CT of both elbow regions, dogs were anesthetized and placed in lateral recumbency. One- and 2-mm contiguous slices were obtained by use of a third generation computed tomographic scanner. Good resolution and anatomic detail were acquired from the computed tomographic images by use of a bone (window width, 3,500 Hounsfield units; window level, 500 Hounsfield units) and soft-tissue setting (window width, 400 Hounsfield units; window level, 66 Hounsfield units). After euthanasia, the forelimbs from the Labrador Retriever were removed and frozen in water at -18 degrees C. Elbow joints were sectioned into approximately 1-mm-thick slab sections by use of an electric planer. Anatomic sections were photographed and compared with the corresponding computed tomographic images. Computed tomographic reconstructions of the elbow joint were created in sagittal and dorsal planes.
Structures on the computed tomographic images were matched with structures in the corresponding anatomic sections. The entire humeroradioulnar joint surface could be evaluated on the reconstructed images in the sagittal and dorsal plane.
Computed tomographic images provide full anatomic detail of the bony structures of the elbow joint in dogs. Muscles, large blood vessels, and nerves can also be evaluated. These results could be used as a basis for evaluation of computed tomographic images of the forelimbs of dogs with elbow joint injuries.
使用计算机断层扫描（CT）详细描述临床正常犬的肘关节结构。
6只体重24至37千克的临床正常成年杂种犬和1只体重27千克的12月龄拉布拉多寻回犬。
为对双侧肘部区域进行CT检查，将犬麻醉并置于侧卧位。使用第三代计算机断层扫描仪获取1毫米和2毫米连续切片。通过骨窗（窗宽3500亨氏单位；窗位500亨氏单位）和软组织窗（窗宽400亨氏单位；窗位66亨氏单位）从计算机断层图像中获得良好的分辨率和解剖细节。安乐死后，将拉布拉多寻回犬的前肢取下并在-18℃的水中冷冻。使用电动刨床将肘关节切成约1毫米厚的板状切片。拍摄解剖切片并与相应的计算机断层图像进行比较。在矢状面和背平面创建肘关节的计算机断层重建图像。
计算机断层图像上的结构与相应解剖切片中的结构相匹配。在矢状面和背平面的重建图像上可以评估整个肱桡尺关节表面。
计算机断层图像提供了犬肘关节骨结构的完整解剖细节。肌肉、大血管和神经也可以进行评估。这些结果可作为评估肘关节损伤犬前肢计算机断层图像的基础。
