Background:The most prevalent type of gynecological cancer is endometrial cancer.Accurate surgical staging is the most important aspect in the management of endometrial cancer.Preoperative evaluation of myometrial inv...Background:The most prevalent type of gynecological cancer is endometrial cancer.Accurate surgical staging is the most important aspect in the management of endometrial cancer.Preoperative evaluation of myometrial invasion and appropriate management could be achieved by transvaginal sonography and pelvic MRI.Methods:A total of 53 patients with endometrial cancer,who were referred to a gynecology oncology department of an academic hospital in Mashhad University of Medical Sciences from 2018 to 2020,were evaluated in this study.Data were collected using a questionnaire on endometrial cancer.All the patients underwent preoperative transvaginal sonography and pelvic MRI to evaluate myometrial invasion.The involvement of myometrium thickness and histological findings were compared between two imaging modalities,and SPSS 23.0 was used to analyze the data.Results:Junctional irregularity was the most prevalent finding on transvaginal sonography.Based on transvaginal sonography,myometrial invasion of less than 50%was found in 73%of patients,while invasion of more than 50%was observed in 26.31%.In 57.44%of MRIs,there was less than 50%myometrial invasion,while in 42.55%of MRIs,there was more than 50%myometrial invasion.In both modalities,the most common finding was myometrial invasion of less than 50%.The accuracy,sensitivity,and specificity of transvaginal sonography were 0.47,0.27,and 0.75,respectively,whereas the accuracy,sensitivity,and specificity of MRI were 0.54,0.45,and 0.61,respectively.Conclusion:MRI can be the modality of choice for evaluating myometrial invasion and optimizing endometrial cancer treatment planning,as well as reducing the complications of non-indicated lymphadenectomy.展开更多
盆腔器官脱垂(pelvic organ prolapse,POP)是指由于盆底支持结构薄弱导致的盆腔器官疝出.动态MRI为无放射性、无创、快捷、全面、高分辨率的检查方法,其软组织对比性强,可清晰显示静息位及动态位时盆底肌肉和筋膜组织结构及功能上的变化...盆腔器官脱垂(pelvic organ prolapse,POP)是指由于盆底支持结构薄弱导致的盆腔器官疝出.动态MRI为无放射性、无创、快捷、全面、高分辨率的检查方法,其软组织对比性强,可清晰显示静息位及动态位时盆底肌肉和筋膜组织结构及功能上的变化,了解盆腔多组织器官的状况,为临床提供客观影像学数据.动态MRI常用于膀胱脱垂与膨出、子宫和阴道脱垂、直肠脱垂及肠疝的诊断,有多种检查技术和方法.目前国内还没有统一的POP诊断的影像标准,其诊断多参照美国UCLA的标准,采取HMO分度系统,但是否适合于我国人种,尚需进一步探讨.总之,动态MRI可综合评价盆腔器官脱垂,是研究活体盆底解剖、形态和运动的重要方法;特别是动态MRI结合排粪造影术,除了临床评价外,对指导盆底功能障碍性疾病的跨学科治疗也具有一定作用.展开更多
目的:三维重建女性盆底组织闭孔内肌、骨盆和肛提肌的复杂几何结构,为从力学角度进一步认识女性盆底组织的力学特性和盆底功能障碍性疾病的发病机理做前期准备.方法:选取一系列层厚为0.8 mm MRI图像,运用三维图像重建软件MIMICS进行图...目的:三维重建女性盆底组织闭孔内肌、骨盆和肛提肌的复杂几何结构,为从力学角度进一步认识女性盆底组织的力学特性和盆底功能障碍性疾病的发病机理做前期准备.方法:选取一系列层厚为0.8 mm MRI图像,运用三维图像重建软件MIMICS进行图像重建,建立其三维几何结构.结果:获得了闭孔内肌、骨盆和肛提肌的独立三维几何结构,从解剖结构上完全还原其相对位置.结论:所获得的三维模型真实地反映了其解剖构型和几何外形,且通过有限元软件验证了本模型力学分析的可行性.展开更多
文摘Background:The most prevalent type of gynecological cancer is endometrial cancer.Accurate surgical staging is the most important aspect in the management of endometrial cancer.Preoperative evaluation of myometrial invasion and appropriate management could be achieved by transvaginal sonography and pelvic MRI.Methods:A total of 53 patients with endometrial cancer,who were referred to a gynecology oncology department of an academic hospital in Mashhad University of Medical Sciences from 2018 to 2020,were evaluated in this study.Data were collected using a questionnaire on endometrial cancer.All the patients underwent preoperative transvaginal sonography and pelvic MRI to evaluate myometrial invasion.The involvement of myometrium thickness and histological findings were compared between two imaging modalities,and SPSS 23.0 was used to analyze the data.Results:Junctional irregularity was the most prevalent finding on transvaginal sonography.Based on transvaginal sonography,myometrial invasion of less than 50%was found in 73%of patients,while invasion of more than 50%was observed in 26.31%.In 57.44%of MRIs,there was less than 50%myometrial invasion,while in 42.55%of MRIs,there was more than 50%myometrial invasion.In both modalities,the most common finding was myometrial invasion of less than 50%.The accuracy,sensitivity,and specificity of transvaginal sonography were 0.47,0.27,and 0.75,respectively,whereas the accuracy,sensitivity,and specificity of MRI were 0.54,0.45,and 0.61,respectively.Conclusion:MRI can be the modality of choice for evaluating myometrial invasion and optimizing endometrial cancer treatment planning,as well as reducing the complications of non-indicated lymphadenectomy.
文摘盆腔器官脱垂(pelvic organ prolapse,POP)是指由于盆底支持结构薄弱导致的盆腔器官疝出.动态MRI为无放射性、无创、快捷、全面、高分辨率的检查方法,其软组织对比性强,可清晰显示静息位及动态位时盆底肌肉和筋膜组织结构及功能上的变化,了解盆腔多组织器官的状况,为临床提供客观影像学数据.动态MRI常用于膀胱脱垂与膨出、子宫和阴道脱垂、直肠脱垂及肠疝的诊断,有多种检查技术和方法.目前国内还没有统一的POP诊断的影像标准,其诊断多参照美国UCLA的标准,采取HMO分度系统,但是否适合于我国人种,尚需进一步探讨.总之,动态MRI可综合评价盆腔器官脱垂,是研究活体盆底解剖、形态和运动的重要方法;特别是动态MRI结合排粪造影术,除了临床评价外,对指导盆底功能障碍性疾病的跨学科治疗也具有一定作用.
文摘目的:三维重建女性盆底组织闭孔内肌、骨盆和肛提肌的复杂几何结构,为从力学角度进一步认识女性盆底组织的力学特性和盆底功能障碍性疾病的发病机理做前期准备.方法:选取一系列层厚为0.8 mm MRI图像,运用三维图像重建软件MIMICS进行图像重建,建立其三维几何结构.结果:获得了闭孔内肌、骨盆和肛提肌的独立三维几何结构,从解剖结构上完全还原其相对位置.结论:所获得的三维模型真实地反映了其解剖构型和几何外形,且通过有限元软件验证了本模型力学分析的可行性.
