AbstractObjective:To evaluate uterine peristalsis in menorrhagia ifbroid patients by cine magnetic resonance imaging and to investigate the possible inlfuence of leiomyoma locations on uterine peristalsis.Materials and Methods:Thirty menorrhagia ifbroid patients and 30 healthy volunteers participated in this study. MR imaging of uterus in axis T1, axis T2-stir and sagittal T2 and cine MRI were prospectively performed with a 1.5 T scanner during the peri-ovulatory phase. The presence and frequency of normal peristalsis were compared between healthy volunteers and ifbroid patients. The relationships between the locations of fibroids and the types of peristalsis were also analyzed.Results: The presence and frequency of normal peristalsis were signiifcantly decreased in menorrhagia ifbroid patients compared to healthy volunteers (P< 0.01). Menorrhagia ifbroid patients showed a variety of types of peristalsis and patients with submucosal showed no peristalsis.Conclusion: In menorrhagia ifbroid patients, the presence of normal peristalsis is significantly decreased, which is not conducive to the rapid transport of sperm to the fallopian tubes. Cine MRI can facilitate evaluation of uterine peristalsis in menorrhagia fibroid patients and provide useful functional information of uterine peristalsis for clinic.%目的：应用MR电影成像技术(cine MRI)探讨月经过多子宫肌瘤患者排卵期子宫蠕动情况及肌瘤位置对子宫蠕动的影响。材料与方法采用1.5 T MRI仪对30名健康志愿者及30例月经过多子宫肌瘤患者于排卵期行盆腔T1轴面、T2-抑脂轴面、T2矢状面及子宫cine MR扫描。比较健康志愿者与月经过多肌瘤患者子宫正常蠕动存在率及蠕动频率，分析肌瘤位置与蠕动形式的关系。结果月经过多子宫肌瘤患者排卵期子宫正常蠕动存在率及蠕动频率较健康志愿者显著降低，两者均有统计学意义(P值均<0.01)，黏膜下肌瘤患者主要表现为无蠕动，肌壁间肌瘤患者蠕动形式多样。结论月经过多子宫肌瘤患者排卵期子宫正常蠕动显著减少，不利于排卵期精子快速进入输卵管；Cine MRI有助于月经过多子宫肌瘤患者子宫蠕动的评价，为临床提供子宫蠕动的功能信息。
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