查询词典 foramen magnum

KEYWORDS: cervical spinal motion; Chiari malformation; foramen magnum decompression; syringomyelia.

要害词：颈椎运动；枕骨大孔减压术；脊髓空洞症

Acquaintance with anatomy of foramen magnum region,microsurgical technique,suitable surgical approach and post--operative management are closely related with the therapeutic effect.

熟悉枕大孔区解剖，运用显微外科技术，选择合适手术入路，注重术后处理，都与疗效密切相关。中国诺宇综合网http：//www.siaaa.com

Acquaintance with anatomy of foramen magnum region,microsurgical technique,suitable surgical approach and post--operative management are closely related with the therapeutic effect.

回顾性 分析 9例枕大孔区肿瘤的临床表现和MRI影像，手术技巧和预后。结果全切5例，次全切3例，部分切除1例。结论熟悉枕大孔区解剖，运用显微外科技术，选择合适手术入路，注重术后处理，都与疗效密切相关。

Chiari malformations are a spectrum of anomalies associated with a reduction of posterior cranial fossa volumes and CSF while conserving overall brain volume. Chiari I malformations refer to a greater than 5 mm herniation of the cerebellar tonsils down through the foramen magnum.

chiari畸形是由于后颅窝容积及脑脊液减小而与正常的脑容积不匹配造成的一系列的异常病变的统称。chiariI型畸形是指小脑扁桃体下疝超过枕骨大孔5mm以上。

Method］ Take foramen magnum resin D101 to separate polysaccharide from the zymotic fluid of Cordyceps mycelium, the phenol-SO2 method to measure polysaccharide in sample.

因此，从20世纪70年代起，人类就开始利用现代生物发酵技术培育虫草菌丝体［1］来代替天然虫草，但，目前对虫草菌丝体发酵液的开发利用，国内外还是鲜有报道。

Methods:The depth of the anterior and posterior rims of foramen magnum and the angle between medulla oblongata and upper spinal cord on midsagittal SE or FSE T1WI were measured in 320normal Chinese individuals and in 36patients with basilar impression.

随机选取320例没有颅颈交界区相关的临床症状及体症，MRI扫描无明显颅骨破坏性病变和颅颈交界区畸形的正常国人和36例颅底凹陷症患者的颅脑MRI图像，于正中矢状面SE或FSE T_1WI图像上测量枕大孔前、后缘中点深度和延髓-上颈髓轴线夹角数值。正常人按性别、年龄分16组，每组20例。

Purpose:To determine the normal ranges of the depth of the anterior and posterior rims of foramen occipital magnum and the angle between medulla oblongata and the upper spinal cord on midsagittal MRI in normal Chinese idividuals and patients with basilar impression,to study their clinical significance and to provide normal reference in diagnosing basilar invagination by MRI.

目的：利用颅脑正中矢状面MRI自旋回波或快速自旋回波T_1WI图像测量颅颈交界区正常的中国人和颅底凹陷症患者枕大孔前、后缘中点深度和延髓-上颈髓轴线夹角数值，评价其正常值范围，探讨其发育规律及临床意义，为MRI诊断颅底凹陷症提供直接的参考标准。

In a normal spine, the spinal dura mater is a loose sheath that is anchored in the ertebral canal by the nere roots and by its attachment to the periosteum in two places: one at the foramen magnum and the dorsal surfaces of C2 and C3 and the other at the coccyx .

在正常脊柱，硬脊膜是松散的鞘性结松，其靠神经根和两个骨膜驸着部位固定在椎管内，一处在枕大孔和C2及C3，另一处在尾骨，其余部分只是悬吊和衬附于椎管内，其间有硬膜外脂肪、静脉丛和疏松的结缔组织。

There was no diflhrence between the two groups in surgical intervention and postoperative complication.Conclusions In order to decrease the risk of neurological complication,foramen magnum decompression (include C.posterior arch)is necessary before instrumentation and correction of scoliosis in Chiari malformation patients with syringomyelia and scoliosis as the first symptom.

Chiari畸形以脊柱侧凸为首发症状，多合并脊髓空洞，发病年龄轻，其临床症状和神经损害体征不明显，治疗策略上主张早期进行枕颈部枕骨大孔区减压和硬脑膜重建成形手术。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。