女性盆底功能障碍患者肛提肌的MRI研究

MRI research on the levator ani muscle of the patients with pelvic floor dysfunction

目的从动静态两方面研究盆底器官脱垂(POP)患者肛提肌的MRI影像学表现。方法采用品质标志分组法分为POP组32例,对照组15例,比较两组的肛提肌裂孔宽度(LHW)、髂骨尾骨肌厚度(ICT)、髂骨尾骨肌角度(ICA)、提肌板角度(LPA)、LH线及M线。结果平静状态下,POP组的LHW及LPA均明显大于对照组,ICT明显小于对照组,差异有统计学意义(P<0.05)。最大腹压时,POP组的LHW、ICA及LPA均明显大于对照组,ICT明显小于对照组,差异有统计学意义(P<0.05)。经最大腹压后,POP组的ΔA1及ΔA2均大于对照组,LH线、M线均长于对照组,差异有统计学意义(P<0.05)。结论 MRI影像学检查能很好地显示肛提肌的正常或病理形态,动态观察可以评估肛提肌的功能改变。

Objective To research the imaging performances of patients with pelvic organ prganprolapse（POP）dynami- clly and staticlly. Methods Quality mark grouping method was used in this research,POP group had 32 cases,control group had 15 cases.Levator ani muscle hiatal width （LHW）,ilium PC muscles thickness （ICT）,ilium PC muscles angle（ICA）,levator ani muscle plate angle（LPA）,LH-line and M-line in two groups was compared respectively. Results In calm state,LHW and LPA in POP group was significantly larger than that in control group respectively,ICT in POP group was significantly smaller than that in control group,with statistical difference （P〈0.05）.When the maximum abdominal pres- sure,LHW,ICA and LPA in POP group was significantly larger than that in control group respectively,ICT in POP group was significantly smaller than that in control group,with statistical difference （P〈0.05）.After the maximum abdominal pressure,AA1 and AA2 in POP group was larger than that in control group respectively,LH-line and M-line in POP group was longer than that in control group respectively,with statistical difference （P〈0.05）. Conclusion MRI imaging can display the normal and pathological form of levator ani muscle and can evaluate the function change of the levator ani muscle by dynamic observation.