Evaluation of Continence after Treatment for Anorectal Anomalies with 2D-cine and 3D-volume MRI

使用 2D 电影和 3D 体积 MRI 评估肛门直肠异常治疗后的节制能力

• 批准号: 09670962
• 负责人: TONAMI Hisao
• 金额: $ 0.45万
• 依托单位: Kanazawa Medical University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09670962/
• 关键词: MRI; Anorectal anomalies; Continence; Cine-imaging; Volume-imaging; 直腸会陰曲

We evaluated the clinical usefulness of 2D- and 3D-MR proctography using a ultrafast MR technique for assessing the fecal continence in children after treatment for anorectal anomalies.1O children after treatment for anorectal anomalies were included in this study. A turbo-FLASH and a 3D-FISP sequences were used to acquire 2D-and 3D-MR images, respectively. After injecting of OMR-2200, MRproctogram was started with the patient at rest, during squeezing, and during expulsion or at maximum straining. From 2D-cine MR images, the temporal changes of the anorectal angle, the width of the anal canal, the movement of the levator sling were measured. From 3D-volume images, volumetric analysis were performed in each phase.On 2D-cine images, wide anorectal angle and dilatation of the anal canal at rest and during straining, and poor movement of the levator sling were noted in children with fecal incontinence. In these children, volumetric analysis showed no significant difference was present between squeezing and straining. Among 8 children on whom conservative treatment was performed, follow-up MR proctograhy showed therapeutic effects in 2 children.It was our conclusion that 2D- and 3D-MR proctography provides detailed, physiologic information about the conditions of anorectal canal in children after treatment for anorectal anomalies.

我们使用超快 MR 技术评估了 2D 和 3D MR 直肠造影在评估肛门直肠异常治疗后儿童大便失禁的临床实用性。本研究纳入了 10 名接受肛门直肠异常治疗后的儿童。 Turbo-FLASH 和 3D-FISP 序列分别用于采集 2D 和 3D-MR 图像。注射 OMR-2200 后，在患者休息、挤压、排出或最大用力时开始 MR 直肠造影。通过 2D 电影 MR 图像，测量肛门直肠角的时间变化、肛管宽度、提肛肌吊带的运动。根据 3D 体积图像，对每个阶段进行体积分析。在 2D 电影图像中，在大便失禁的儿童中，在休息和用力时会出现宽肛门直肠角和肛管扩张，以及提肛吊带运动不良。在这些儿童中，体积分析显示挤压和用力之间不存在显着差异。在 8 名接受保守治疗的儿童中，随访 MR 直肠造影显示 2 名儿童有治疗效果。我们的结论是，2D 和 3D-MR 直肠造影可提供有关肛门直肠异常治疗后儿童肛门直肠管状况的详细生理信息。