Normal values for assessment of anal sphincter morphology, anorectal motion, and pelvic organ prolapse with MRI in healthy women
Normal values for assessment of anal sphincter morphology, anorectal motion, and pelvic organ prolapse with MRI in healthy women
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DOI：
10.1111/nmo.13314
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发表时间：
2018-07-01
影响因子：
3.5
通讯作者：
Bharucha, A. E.
中科院分区：
文献类型：
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作者：
Tirumanisetty, P.;Prichard, D.;Bharucha, A. E.
背景肛门内MRI和MR排粪造影术用于确定肛门括约肌损伤和排便障碍。然而，很少有研究对无症状健康人的研究结果进行评估。体重指数和产次对直肠运动和排空的影响尚不清楚。方法对113例无肛门直肠损伤危险因素的女性(年龄5017岁，平均SD)进行MRI检查，观察其肛门括约肌形态、肛门直肠运动和盆腔器官脱垂。结果90%以上的女性肛门括约肌和耻骨直肠肌正常。在动态MRI检查中，安静时肛门直肠角为100+/-10°，挤压时为70+/-2度，排便时为120+/-2度。挤压过程中肛门直肠角的变化(r=-0.25，P
BackgroundEndoanal MRI and MR defecography are used to identify anal sphincter injury and disordered defecation. However, few studies have evaluated findings in asymptomatic healthy people. The effects of BMI and parity on rectoanal motion and evacuation are unknown.MethodsIn 113 asymptomatic females (age 5017years, MeanSD) without risk factors for anorectal trauma, anal sphincter appearance, anorectal motion, and pelvic organ prolapse were evaluated with MRI. The relationship between age, BMI, and parity and structural findings were evaluated with parametric and non-parametric tests.ResultsThe anal sphincters and puborectalis appeared normal in over 90% of women. During dynamic MRI, the anorectal angle was 100 +/- 1o (Mean +/- SEM) at rest, 70 +/- 2 degrees at squeeze, and 120 +/- 2 degrees during defecation. The change in anorectal angle during squeeze (r=-.25, P