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目的:研究正常未育青年女性静息状态阴道三维精细解剖结构。方法:收集2013年1月至2016年10月于南方医院妇科就诊患者的MRI影像数据及一般资料。选择满足入选要求的45例青年未育女性静息状态下MRI数据集,利用Mimics 10.01软件进行三维重建,联合UG软件对阴道及其与尿道之间的精细解剖参数进行三维测量和分析。结果:所有数据可构建阴道和尿道三维模型。阴道相关精细解剖参数如下:近、中、远端尿道阴道间隙依次为:5.99±1.95 mm、3.06±1.62 mm、1.09±1.43 mm。近端阴道前壁宽度34.09±6.83 mm,远端阴道前壁宽度29.69±5.60mm,阴道前壁中线长度61.02±10.12 mm。中段阴道轴位二维形态有H型和浅凹型两种,其中H型占比91.11%。结论:计算机三维重建技术能够直观再现人体阴道三维解剖形态,提供阴道精细解剖的三维研究的平台,通过多项径线的测量,反映正常状态下阴道及其周围支持结构功能的情况。
Objective: To study the three-dimensional fine anatomical structure of the vagina in resting normal young women. Methods: MRI data and general information of gynecological patients in Nanfang Hospital from January 2013 to October 2016 were collected. MRI data sets of 45 cases of young infertile women were selected to meet the requirements of the selection. Three-dimensional reconstruction was performed using Mimics 10.01 software and the UG software was used to perform 3D measurement and analysis of the fine anatomic parameters between the vagina and the urethra. Results: All data can be used to construct a three-dimensional model of the vagina and urethra. Vaginal fine anatomic parameters are as follows: proximal, distal and distal urethral vaginal clearance were: 5.99 ± 1.95 mm, 3.06 ± 1.62 mm, 1.09 ± 1.43 mm. The width of the anterior vaginal wall was 34.09 ± 6.83 mm, the width of the anterior vaginal wall was 29.69 ± 5.60 mm, and the length of the anterior vaginal wall was 61.02 ± 10.12 mm. Two-dimensional shape of the middle vaginal axis H-shaped and shallow concave two types, of which H-type accounted for 91.11%. CONCLUSION: Computer 3D reconstruction technology can intuitively reproduce the three-dimensional anatomy of human vagina and provide a three-dimensional research platform for fine vaginal dissection. By measuring multiple radial lines, it can reflect the function of vaginal and surrounding supporting structures under normal conditions.