迷路后的

To estimate the effect of three differentapproaches on operative exposure by measuring the distance between rear part ofposterior semicircular canal and anterior margin of the sigrnoid sinus at the level oflateral semicircular canal,exposure areas of posterior fossa,operative angle of visionand residual lateral projection area of drilled semicircular canal.

3另9例尸头标本行迷路后入路、PLPA入路及经迷路入路，测量外半规管水平半规管后端与乙状窦前缘的距离、后颅窝暴露面积、手术视角及残留半规管的侧方投影面积，评价三种不同手术方式对手术暴露的影响。

Patientes had intact , 2 patients cns deficit did not change after operation,and 3 patients had worsening cns palsies.conclusion the anterolateral area of brain stem would be good by way of using expansile posterior labyrinth approaches.direct approach with a short distance,a wide surgical field,multiple visualized angles,miniomalbrain retraction. the main influential factors of surgical results might be the vascular factor.

迷路后入路采用不同联合方式，对脑干腹外侧除颅颈交界区外的巨大肿瘤可以良好显露，术野开阔，路径短，脑牵拉轻，可多视角操作，影响术后效果的最主要因素可能为血管因素和肿瘤对脑干的压迫程度。

Objective General evaluation of the degree of exposure and damage to the cerebellopontine angle region by the postlabyrithine approach and suboccipital retrosigmoid approach, being familiar with anatomic structure of this region and providing theory reference for the choice of the clinical operative approach.

方法在显微镜下对5例(10侧)国人成人头颅灌注湿性标本进行模拟经迷路后入路和经枕下乙状窦后入路的手术操作，观察区域解剖结构、按Ammirat标准进行评价两种入路对桥小脑角区的显露程度，测量并用Horgan法计算出显露面积，并按损伤程度的评分评价两入路对桥小脑角区的损伤程度。

objective to improve the outcome of giant tumors at anterolateral area of brainstem by way of using microsurgical technique.

目的 探讨经扩大迷路后入路切除脑干腹外侧巨大肿瘤的显微手术，提高手术治疗效果。

Results By means of adjusting the angle of microscope, the structures were exposed of ipsilateral cerebellopontile angle, anterior and lateral regions of the pons, and supratentorial area of the cerebellum.

结果通过调整显微镜角度，幕上下乙状窦前迷路后锁孔入路可显露同侧桥小脑角区、桥前区、桥侧方、脑幕上区的结构。

Objective: To study the posterior surface of petrous bone and abut important neurovessel, in order to provide anatomical prove for clinic transpetrous presigmoid retrolabrinth approach.

目的：研究岩骨小脑面及与其毗邻的重要神经和血管结构，为临床开展经岩骨SS前迷路后入路进行显微神经外科手术提供解剖学依据。

To compare the effect on operative exposureamong retrolabyrinthine approach,PLPA approach and translabyrinthine approach.Methods (1)Vessels perfusion and microanatomy were performed in 15 cadavericheads.Outlines of temporal bone and space relationship between inner structureswere measured.

目的研究颞骨的外部形态及内部结构，测量结构的空间关系；对比研究神经导航辅助Kawase入路与常规Kawase入路对手术过程及手术暴露的影响；对比研究迷路后入路、PLPA入路及经迷路入路对手术暴露的影响。

The distance between rear part of posterior semicircular canal andanterior margin of the sigmoid sinus increased by 4.45 mm(57.8%),exposure areas ofposterior fossa dura increased by 157.32 mm~2 (64.3%)and operative angle of visionwas 329.6% that of retrolabyrinthine approach when performing PLPA approachcompared with retrolabyrinthine approach.

PLPA入路与迷路后入路相比，半规管后端与乙状窦前缘的距离较迷路后入路增加了4.45 mm (57.8%)，后颅窝硬膜的暴露面积增加了157.32 mm~2 (64.3%)，手术视角为迷路后入路的329.6%。

Mr Mootoo, who is hard of hearing, spent the first night lyingona piece of plywood in a yard, with a board on top of him tokeepoff the snow.

听力有些问题的达蒙在迷路后的第一天夜里睡在一个院落里的水泥板上并用木板盖在身上挡雪。

Mr Mootoo, who is hard of hearing, spent the first night lying on a piece of plywood in a yard, with a board on top of him to keep off the snow.

听力有些问题的达蒙在迷路后的第一天夜里睡在一个院落里的水泥板上并用木板盖在身上挡雪。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。