基于磁共振成像子宫脱垂患者盆底结构三维重建与分析

发布时间：2018-03-18 21:53

本文选题：磁共振成像　切入点：盆腔器官脱垂　出处：《实用妇产科杂志》2016年04期 　论文类型：期刊论文

【摘要】：目的:利用女性盆底磁共振成像(MRI)图像,建立子宫脱垂患者盆底结构三维重建模型,探讨子宫脱垂患者盆底MRI三维影像特征及临床意义。方法:选取2013年9月至2014年6月子宫脱垂患者30例为研究组(脱垂组),选取健康女性20例为对照组,于静息位和Valsalva动作时行盆底MRI扫描。利用Amira商业软件,对MRI图像进行分析及3D建模。结果:建立了两组盆底结构的3D模型。脱垂组与对照组比较:静息位和Valsalva动作时的PCL、H线、G1角、G2角、宫颈长度差异均无统计学意义(P0.05);M线、C线差异均有统计学意义(P0.05);B线静息位时差异无统计学意义(P0.05),Valsalva动作时差异有统计学意义(P0.05)。两组静息位和Valsalva动作时差值比较:两组的PCL长度差值均无统计学意义(P0.05);M线、G1角、G2角、B线、C线的差值有统计学意义(P0.05);H线对照组的差值有统计学意义(P0.05),脱垂组的差值无统计学意义(P0.05)。结论:MRI能清楚显示盆底结构,H线、M线、G1角、G2角可衡量盆腔器官脱垂的程度;其构建的3D模型能直观显示各结构的空间毗邻关系,可评价复杂的盆底缺陷,有利于制定个体化手术方案,进行盆底解剖教学及生物力学研究。
[Abstract]:Objective: to establish a three-dimensional reconstruction model of pelvic floor structure in patients with uterine prolapse by using magnetic resonance imaging (MRI) images of female pelvic floor. To explore the characteristics and clinical significance of MRI images of pelvic floor in patients with uterine prolapse methods: 30 patients with uterine prolapse from September 2013 to June 2014 were selected as study group and 20 healthy women as control group. Perform pelvic floor MRI scans at rest and Valsalva movements. Using Amira commercial software, Analysis and 3D modeling of MRI images. Results: two groups of 3D models of pelvic floor structure were established. There was no significant difference in cervical length between the two groups. There was no significant difference in the resting position of P0.05 / B line. There was no significant difference between the two groups in the resting position of P0.05 and Valsalva. The difference between the two groups in resting position and Valsalva movement time was higher than that in the control group. There was no significant difference in PCL length between two groups. Conclusion the difference of G 1 angle G 2 angle B line C line is statistically significant in the control group (P 0.05), but there is no significant difference in the prolapse group (P 0.05). Conclusion the pelvic floor can be clearly displayed by the PCL. The G _ 1 angle and G _ 2 angle can be used to measure the degree of pelvic organ prolapse. The 3D model can visualize the spatial contiguity of each structure, evaluate the complex pelvic floor defects, and make individualized surgical procedures, teaching pelvic floor anatomy and biomechanical research.
【作者单位】：第三军医大学西南医院;第三军医大学生物工程系数字医学研究所;
【基金】：国家青年科学基金资助(编号:81100480)
【分类号】：R711.2;R445.2

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