| 王毅,龚水根,张伟国,陈金华,鲁宏,谭勇.正常女性盆底解剖、形态的动态MRI研究[J].中国医学影像技术,2003,19(12):1711~1714 |
| 正常女性盆底解剖、形态的动态MRI研究 |
| Anatomical and Morphologic Study of Normal Female Pelvic Floors Using Dynamic Magnetic Resonance Imaging |
| 投稿时间：2003-04-22 |
| DOI： |
| 中文关键词: 盆底 解剖学 形态学 磁共振成像 |
| 英文关键词:Pelvic floor Anatomy Morphology Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 采用静息与最大盆腔用力时盆腔动态MRI评价正常盆腔器官的位置、运动和盆底形态,为动态MRI在盆底功能性疾病诊断上的临床应用建立盆腔器官运动程度和盆底形态学的正常标准。方法 对30例健康女性志愿者进行静息与最大盆腔用力时盆腔动态MRI检查。采集的MR影像用于观测盆腔器官的位置、运动和盆底形态。结果 最大盆腔用力时正常盆底在形态上变化不明显,盆腔器官的平均下降值是膀胱颈(15.3±4.3)mm,子宫颈(10.7±3.4)mm,肛直肠连接(19.2±6.8)mm,盆隔裂孔的平均增大百分比是(12.2±6.4)%。盆腔器官运动的范围是膀胱颈不超过耻尾线下1cm,子宫颈不超过耻尾线以下,肛直肠连接不超过耻尾线以下2.5cm。结论 MRI是研究活体盆底解剖与形态学的有效方法。正常妇女盆腔动态MR影像上,最大盆腔用力时盆腔器官有一定程度的运动,但无脱垂,盆底形态上变化不明显。 |
| 英文摘要: |
| Objective To establish normal criteria of movement degree of pelvic organs and pelvic floors morphology for clinical application of dynamic magnetic resonance imaging in diagnosing pelvic floor functional diseases, the author studied position and movement of pelvic organs and the shape of pelvic floors of normal asymptomatic female volunteers. Methods Thirty female asymptomatic volunteers were examined with pelvic dynamic MRI at rest and during maximal pelvic strain. All MR imagings were used to observe position and movement of pelvic organs and the shape of pelvic floors. Results The bladder neck should not descend more than 1cm below the pubococcygeal line (PCL), the vaginal cuff and cervix did not descend more than the PCL, the anorectal junction descended no more than 2.5cm below the PCL and the shape of pelvic floors did not distinct change with maximal pelvic strain. Average descent values of pelvic organs were bladder neck (15.3±4.3)mm, uterine cervix (10.7±3.4)mm, anorectal junction (19.2±6.8)mm and the increased average percentage was (12.2±6.4)% during maximal pelvic strain. Conclusion MRI is a useful technique for evaluating anatomy and morphology of pelvic floors in vivo. In pelvic dynamic MR imaging, though, the normal women show various degrees of movement of pelvic organs, they have seldem pelvic organ prolapses and distinct morphologic change of pelvic floors during maximal pelvic strain. |
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