Gómez Marcelo, Freeman Larry, Jones Jeryl, Lanz Otto, Arnold Pam
Department of Biomedical Science, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061-0442, USA.
Vet Radiol Ultrasound. 2004 Jan-Feb;45(1):29-37. doi: 10.1111/j.1740-8261.2004.04005.x.
Computed tomographic (CT) venography of the cervical vertebral canal was performed in six, clinically normal, adult mixed-breed dogs from 14 to 23 kg. After dogs were euthanized and saline perfused, a gelatin and iothalamate mixture was injected into the right external jugular vein. Contiguous, 4-mm-thick CT images were obtained with dogs in sternal recumbency. Dogs were kept in the same position as for the CT scan and frozen to approximately -8 degrees C. All post-contrast CT images were analyzed using similar bone window and level settings. Additional multiplanar reformatted dorsal images were obtained in all dogs. The frozen cadavers were sectioned through the cervical region extending from the occiput to T1 at approximately 8-mm intervals. The frozen sections were then compared with the CT images. The CT appearance of the normal cervical vertebral venous system was described and illustrated. Components such as the internal vertebral venous plexus, interarcuate veins, intervertebral veins, and vertebral veins were clearly identified on the CT images.
对6只体重14至23千克、临床健康的成年杂种犬进行了颈椎管计算机断层扫描（CT）静脉造影。犬只安乐死后用生理盐水灌注，将明胶和碘他拉酸盐混合物注入右侧颈外静脉。犬只处于胸骨卧位时获取4毫米厚的连续CT图像。犬只保持与CT扫描时相同的体位并冷冻至约-8摄氏度。所有增强后CT图像均使用相似的骨窗和窗位设置进行分析。所有犬只均获取了额外的多平面重组背侧图像。将冷冻尸体从枕骨至T1的颈椎区域以约8毫米的间隔进行切片。然后将冷冻切片与CT图像进行比较。描述并展示了正常颈椎静脉系统的CT表现。在CT图像上可清晰识别诸如椎内静脉丛、弓间静脉、椎间静脉和椎静脉等结构。
