盆腔器官顶端脱垂骨盆标示角及标示线的MRI研究

MRI study on pelvic marking angle and marking line of apical pelvic organ prolapse

目的:比较盆腔器官顶端脱垂宫颈正常和宫颈延长患者MRI上的骨盆标示角及标示线来评估两种状态下盆底损伤程度的差异。方法:以84例子宫Ⅱ度及以上的盆腔器官脱垂患者为研究对象,术前均行盆腔器官脱垂量化评估(POP-Q)和盆腔磁共振检查;采集图像,测量宫颈长度,将其分为宫颈正常组和宫颈延长组,并比较两组H角、G角、H线、M线的差异。结果:静息和动态下G角、静息下的H角、H线和M线以及动态下的H线及M线差异无统计学意义(P>0.05),但val-salva下H角、两组的H角差值、G角差值、两组C点差异均有统计学意义(P<0.05)。结论:相对于宫颈延长患者,盆腔器官顶端脱垂宫颈正常患者的盆底损伤更重。

Objective： To compare pelvic marking angles and marking lines displayed by MRI in patients with normal cervix and pelvic organ prolapse（POP） and patients with prolonged cervix and POP to evaluate the difference of injury degree of pelvic floor.Methods： Eighty-four grade Ⅱ and above POP patients were selected as study objects,quantitative evaluation of POP（POP-Q） and pelvic MRI were conducted before operation;the images were collected,the cervical length was measured,and then the patients were divided into normal cervix group and prolonged cervix group;the differences of H angle,G angle,H line and M line were compared between the two groups.Results： There was no statistically significant difference in G angle under tranquillization and strain,H angle,H line and M line under tranquillization,H line and M line under strain between the two groups（P 0.05）,but there were statistically significant difference in H angle under valsalva and G angle between the two groups（P 0.05）.Conclusion： Compared with patients with prolonged cervix,the pelvic floor injury of patients with normal cervix and POP is more severer.