直窦解剖变异对松果体区幕下小脑上入路手术的影响  

Influence of anatomical variations of the straight sinus on infratentorial supracerebellar approach for pineal region tumors

作　　者：顾向进[1] 冯东侠[1] 张怡璐[1] 

机构地区：[1]东南大学医学院附属江阴医院神经外科,江苏江阴214400

出　　处：《中国微侵袭神经外科杂志》2005年第8期366-367,共2页Chinese Journal of Minimally Invasive Neurosurgery

摘　　要：目的评估直窦解剖变异对幕下小脑上入路治疗松果体区病变手术的影响。方法选取200例检查结果为阴性的头颅MRI影像学资料,在正中矢状面T1WI上对直窦的长度、倾斜度、与胼胝体压部的关系进行测量和分析。结果直窦平均长(51±5.3)mm;直窦与硬腭水平的夹角为49.6°±7.2°;与胼胝体压部的位置关系可分为低角度型(24.5%),常见型(69.5%),高角度型(6.0%)。结论直窦的解剖变异较大。术前应用MRI了解直窦的倾斜度,明确手术路径与松果体区病变的空间位置关系,对手术具有重要的指导意义。Objective To cvaluate the anatomical variations of the straight sinus and their effects on the infratentorial supraccrebellar approach to pineal region lesions. Methods The length and inclination of the straight sinus were measured .and the relationship betwween the straight sinus and the splenium was analyzed on T1-weighted MRI midsagittal sections in 200 negative cases. Results The length of the straight sinus was （51±5.3）mm,and the angle between the straight sinus and the hard palate plane was 49.6°±7.2°.The relationship of the straight sinus and the variations were found in the straight sinus ,The prcoperative measurements of the straight sinus inclination on MRI and identification of the relationship between the operative approach and lesion play an important role in dealing with the pineal region lesion via infratentorial supracerebellar approach.

关 键 词：直窦 幕下小脑上入路 松果体瘤 神经解剖学 

分 类 号：R322[医药卫生—人体解剖和组织胚胎学]