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61.
The cervical spine of 21 dogs with clinical signs of cervical stenotic myelopathy was evaluated using magnetic resonance (MR) imaging. Spin echo T1, T2 and gradient echo T2 weighted images were obtained with a 1.5 Tesla magnet in 12 dogs and a 1.0 Tesla magnet in 9 dogs. Sagittal or parasagittal T1W and T2W images were helpful in determining the presence of spinal cord compression or degenerative disease of the articular processes. Transverse T1W and T2W images were the most useful for the identification of dorsolateral spinal cord compression secondary to soft tissue and ligament hypertrophy, as well as synovial cysts, associated with the articular processes. The MR imaging findings were consistent with the surgical findings in all 14 dogs that underwent surgery. Magnetic resonance imaging provided a safe, non-invasive method of evaluating the cervical spine in dogs suspected of having cervical stenotic myelopathy. Veterinary  相似文献   
62.
Cervical spondylomyelopathy or "wobbler syndrome" is a well-defined disorder of large-breed dogs, characterized by a compressive lesion affecting the cervical spinal cord that in many dogs may have a dynamic component. Determination of whether this dynamic component is present is important in the decision-making process as regards therapeutic intervention. Despite a significant risk of neurologic deterioration following myelography in some large dogs affected by wobbler syndrome, myelography is considered an essential part of the assessment, primarily as it allows assessment of whether a dynamic compression exists. This same neurologic deterioration is not apparent following magnetic resonance (MR) imaging; however, the use of MR imaging in the investigation of wobbler syndrome has thus far been limited by the inability to perform the traction studies required to ascertain whether a dynamic component to the spinal cord compression exists. This paper presents a technique of applying traction during MR imaging of the cervical spine to reduce a dynamic wobbler syndrome lesion.  相似文献   
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目的初步研究宫颈外观与宫颈病变的关系.方法选取2005-01—2009-12月河北北方学院附属第一医院妇科所有宫颈病变患者临床资料,回顾性分析其临床资料,按病变程度分组,比较各组病变之间宫颈外观的构成比,并作分析.结果在所有阳性病例中宫颈光滑和轻度糜烂与中重度糜烂组比较,差异无统计学意义.但在高度病变和癌变中中重度糜烂...  相似文献   
64.
Computed tomography (CT) provides excellent bony detail, whereas magnetic resonance (MR) imaging is superior in evaluating the neural structures. The purpose of this prospective study was to assess interobserver and intermethod agreement in the evaluation of cervical vertebral column morphology and lesion severity in Great Danes with cervical spondylomyelopathy by use of noncontrast CT and high‐field MR imaging. Fifteen client‐owned affected Great Danes were enrolled. All dogs underwent noncontrast CT under sedation and MR imaging under general anesthesia of the cervical vertebral column. Three observers independently evaluated the images to determine the main site of spinal cord compression, direction and cause of the compression, articular process joint characteristics, and presence of foraminal stenosis. Overall intermethod agreement, intermethod agreement for each observer, overall interobserver agreement, and interobserver agreement between pairs of observers were calculated by use of kappa (κ) statistics. The highest overall intermethod agreements were obtained for the main site of compression and direction of compression with substantial agreements (κ = 0.65 and 0.62, respectively), whereas the lowest was obtained for right‐sided foraminal stenosis (κ = 0.39, fair agreement). For both imaging techniques, the highest and lowest interobserver agreements were recorded for the main site of compression and degree of articular joint proliferation, respectively. While different observers frequently agree on the main site of compression using both imaging techniques, there is considerable variation between modalities and among observers when assessing articular process characteristics and foraminal stenosis. Caution should be exerted when comparing image interpretations from multiple observers.  相似文献   
65.
The height, width, and cross-sectional area of the vertebral canal and spinal cord along with the area ratio of spinal cord to vertebral canal in the cervical vertebra were evaluated in images obtained using computed tomography (CT). Measurements were taken at the cranial, middle, and caudal point of each cervical vertebra in eight clinically normal small breed dogs (two shih tzu, two miniature schnauzers, and four mixed breed), 10 beagles, and four German shepherds. CT myelography facilitated the delineation of the epidural space, subarachnoid space, and spinal cord except at the caudal portion of the 7th cervical vertebra. The spinal cord had a tendency to have a clear ventral border in the middle portion of the vertebral canal and lateral borders near both end plates. The height, width, and area of the vertebral canal and spinal cord in the cervical vertebra were increased as the size of dog increased. However, the ratio of the spinal cord area to vertebral canal area in the small dogs was higher than that of the larger dogs. Results of the present study could provide basic and quantitative information for CT evaluation of pathologic lesions in the cervical vertebra and spinal cord.  相似文献   
66.
目的 :探讨nm2 3基因表达与宫颈癌转移及预后的关系。方法 :采用免疫组化方法 ,检测经病理证实的 30例正常宫颈上皮组织 (对照组 )及 5 5例宫颈癌组织 (实验组 )中nm2 3的表达水平。结果 :(1)在正常宫颈组织中 ,2 9例呈nm2 3高表达 (96 .7% ) ,仅 1例呈nm2 3低表达 (3.3% ) ,在宫颈癌组织中 19例呈nm2 3高表达 (34.4 % ) ,36例为nm2 3低表达 (6 5 .6 % ) ,差异有显著性 (P <0 .0 1)。 (2 )nm2 3在宫颈癌临床分期晚、细胞分化程度差、有转移、复发及预后差的患者中表达显著降低 (P <0 .0 1)。结论 :nm2 3的表达可作为反映宫颈癌恶性潜能的指标之一。  相似文献   
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全麻加颈丛神经阻滞对复杂性甲状腺手术麻醉的效果观察   总被引:4,自引:0,他引:4  
目的 :观察全麻加颈丛阻滞用于复杂性甲状腺手术是否优于全麻。方法 :68例复杂性甲状腺手术分为全麻复合颈丛神经阻滞组 (A组 ) 4 2例和全麻组 (B组 ) 2 6例 ,观察两组患者术前、术中和术毕的血压、心率、血糖变化及清醒拔管时间。结果 :两组间术前血压、心率和血糖无明显差异 ,但在手术开始和分离甲状腺时血压、心率及术中血糖变化差异非常显著 (P<0 .0 1 )。A组在气管插管时的血压和心率较术前、术中和术毕明显升高 (P<0 .0 1 ) ;而 B组在气管插管时的血压和心率与术中比较无差异 ,但比术前和术毕明显升高 (P<0 .0 1 )。结论 :复杂性甲状腺手术选择全麻复合颈丛神经阻滞 ,在术中血流动力学稳定、减轻应激反应及缩短术毕清醒气管导管拔除时间等方面明显优于单纯全麻。  相似文献   
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