摘要
目的:通过实时剪切波弹性成像(SWE)技术定量分析不同年龄阶段健康成人女性的肛门括约肌复合体(ASC)的硬度,为今后评估ASC的病变奠定基础.方法:选取2022年10月-2023年9月于云南大学附属医院行盆底及经阴道超声检查的健康女性124例,根据年龄分为4组.采用二维超声测量ASC的厚度,SWE测量ASC的弹性模量平均值;比较不同年龄ASC的厚度及弹性模量值的差异,分析二者之间的差异.结果:肛门内括约肌近端平面9点、12点、3点、6点厚度;中部平面9点、12点、3点、6点厚度;远端平面9点、3点、6点厚度与年龄呈微弱正相关(rp=0.279、0.298、0.251、0.321、0.247、0.294、0.311、0.399、0.193、0.218、0.251,P＜0.01).肛门外括约肌远端平面9点、3点、6点厚度与年龄呈微弱正相关(rp=0.202、0.232、0.305,P＜0.05).肛门内括约肌近端平面9点、12点、3点、6点弹性值;中部平面9点、12点、3点、6点弹性值;远端平面9点、12点、3点、6点弹性值与年龄呈负相关(rp=-0.339、-0.157、-0.466、-0.554,-0.413、-0.183、-0.438、-0.548,-0.403、-0.291、-0.465、-0.509,P＜0.01).肛门外括约肌远端平面9点、12点、3点、6点弹性值与年龄呈负相关(rp=-0.422、-0.317、-0.450、-0.540,P＜0.01).双侧耻骨直肠肌弹性值与年龄呈负相关(rp=-0.397、-0.450,P＜0.01).结论:经会阴高频超声能清晰显示ACS的结构,SWE技术可以定量评估ACS的硬度,为临床提供重要参考依据.
Abstract
Objective:To quantitatively analyze the hardness of anal sphincter complex(ASC)in healthy adult women of different ages by real-time shear wave elastography(SWE),and to lay a foundation for future evaluation of ASC lesions.Methods:A total of 124 healthy women who underwent pelvic floor and transvaginal ultrasonography in the Affiliated Hospital of Yunnan University from October 2022 to September 2023 were selected and divided into 4 groups according to age.The thickness of ASC was measured by two-dimensional ultrasound,and the average elastic modulus of ASC was measured by SWE.The thickness and elastic modulus of ASC at different ages were compared and the differences between them were an-alyzed.Results:The internal anal sphincter thicknesses of the proximal plane at 9,12,3,6 points,central plane at 9,12,3,6 points and distal plane at 9,3,6 points were positively correlated with age(rp=0.279,0.298,0.251,0.321,0.247,0.294,0.311,0.399,0.193,0.218,0.251,P＜0.01).The thicknesses of the distal plane of the external anal sphincter at 9,3 and 6 points were positively correlated with age(rp=0.202,0.232,0.305,P＜0.05).The elastic values of the internal anal sphincter of proximal plane at 9,12,3,6 points,central plane at 9,12,3,6 points and distal plane at 9,12,3 points were negatively correlated with age(rp=-0.339,-0.157,-0.466,-0.554,-0.413,-0.183,-0.438,-0.548,-0.403,-0.291,-0.465,-0.509,P＜0.01).The elastic values at 9,12,3 and 6 points of the distal plane of the external anal sphincter were negatively correlated with age(rp=-0.422,-0.317,-0.450,-0.540,P＜0.01).The elasticity of bilateral puborectal muscle was negatively correlated with age(rp=-0.397,-0.450,P＜0.01).Conclusion:Perineal high frequency ultrasound can clearly show the structure of ASC,and SWE technique can quantitatively evaluate the hardness of ASC,which provides an important reference for clinical.
维普
万方数据