国人女性距状沟形态及侧差的三维MRI研究  

Three-dimensional MRI study on the morphology and lateral asymmetry of Chinese female calcarine sulcus

作　　者：王海青[1] 丁娟[1] 孙博[1] 林祥涛[1,2] 葛海涛[1] 汤煜春[1] 李振平[1] 刘树伟[1] 

机构地区：[1]山东大学医学院断层影像解剖学研究中心,济南250012 [2]山东省医学影像学研究所,济南250021

出　　处：《解剖学报》2010年第2期285-290,共6页Acta Anatomica Sinica

基　　金：国家自然科学基金资助项目(30871305)

摘　　要：目的探讨国人女性距状沟在MRI图像上的形态、大小及其侧差。方法对40例女性志愿者头部进行高分辨率MRI扫描,获取横断面图像,用Brainvisa软件对其三维重建后,自动测量距状沟的沟深、沟宽和沟长。用SPSS软件对结果进行统计学分析,比较左右侧的差别。结果在正中矢状面上,距状沟后部分为分叉型(32.50%)、单峰型(25.00%)、平坦型(16.25%)、S型(15.00%)、双峰型(7.50%)和其他型(3.75%)6种类型。距状沟后部在正中矢状面上的位置可分为偏下(72.50%)、中间(21.25%)、偏上(6.25%)3种情况。女性距状沟的沟深左侧为(15.24±2.67)mm,右侧为(16.97±3.25)mm;沟宽左侧为(3.14±0.91)mm,右侧为(3.19±0.83)mm;沟底长左侧为(86.47±16.85)mm,右侧为(83.62±17.10)mm;沟顶长左侧为(70.52±12.40)mm,右侧为(64.90±15.17)mm。女性距状沟沟深右侧明显大于左侧(P<0.001),沟宽和沟长差别无统计学意义。距状沟末端转到大脑半球外侧面的超过半数(52.75%)。禽距的出现率为78.75%。结论女性距状沟的沟深右侧明显大于左侧。用三维重建的方式研究结构复杂的距状沟是一种很好的方法。Objective To study the morphology, normal values and lateral asymmetry of Chinese calcarine sulcus on MRI. Methods Highresolution and transverse MRI were obtained from 40 female volunteers. Brainvisa software was used to reconstruct the calcarine sulcus and measure its average length, depth and width automatically. Results The posterior branch of calcarine sulcus showed six types in the median sagittal plane： bifurcation（32.50%）, single peak（25.00%）, flat （16.25%）, S-shaped （15.00%）, double peak（7.50%） and other shape （3.75%）; its location had three types： inferior（72.50%）, middle（21.25%）and superior（6.25%）. The depth of left calcarine sulcus was （15.24±2.67）mm, and the right one was （16.97±3.25）mm, which revealed great statistical significance （P〈0.000 1）. The width of left calcarine sulcus was （3.14±0.91）mm, and it was （3.19± 0.83）mm in the right side. The bottom length of calcarine sulcus： the left was （86.47±16.85）mm, the right was （83.62±17.10）mm. The top length of calcarine sulcus： the left was （70.52±12.40）mm, the right was （64.90±15.17）mm. There were not statistical significance in width, bottom length and top length between left and right calcarine sulci. More than half of the end part of calcarine sulci turned to the lateral surface of cerebral hemisphere.Totally 63 cases （78.75%） were found with prominent calcar avis. Conclusion Significant difference of depth between left and right calcarine sulcus of female was found. Threedimensional reconstruction is an effective method to study the anatomy of calcarine sulcus.

关 键 词：距状沟 侧差 磁共振成像 三维重建 女性 

分 类 号：R338.21[医药卫生—人体生理学]