基于磁共振成像的肛门外括约肌数字化三维模型构建  

Reconstruction of digital three-dimensional model of external anal sphincter based on MRI

作　　者：刘萍[1] 陈若兰[1] 郭传家[1] 陈春林[1] 彭程[1] 黄璐[1] 

机构地区：[1]南方医科大学南方医院妇产科,广州市510515

出　　处：《实用医学杂志》2014年第2期177-179,共3页The Journal of Practical Medicine

基　　金：国家自然科学基金(编号:61190120);广东省自然科学基金(编号:10151051501000102;S2011010003830)

摘　　要：目的:利用磁共振数据集和三维重建技术构建肛门外括约肌数字化模型并探讨其解剖结构及模型意义。方法:选取2011年6月至2012年8月因各种妇科疾病在我院行盆腔MRI检查的患者12例,对其行高分辨轴位质子加权薄层扫描。将采集的Dicom 3.0原始数据集导入Mimics 10.01软件中行女性肛门外括约肌及其他盆腔器官、盆底肌肉的三维重建并配准融合。结果:成功重建出肛门外括约肌三维模型,可以进行任意角度旋转以便观察肛门外括约肌的形态及其组成部分。结论:利用MRI及三维重建技术重建出的肛门外括约肌模型可以辅助临床和解剖教学,评估相关肛门外括约肌重建手术,能进行生物力学研究。Objective To build a digital model of the external anal sphincter by using magnetic resonance data and three-dimensional rebuilding technique, and to explore the anatomical structure of the external anal sphincter and the significance of the model. Methods Thin-slice magnetic resonance imaging was performed on 12 patients for a variety of gynecological diseases in Nanfang Hospital in June 2011 to August 2012. MR images were imported into Mimics 10.0I for 3D reconstruction. Results Models of female external anal sphincter and its surrounding structures were successfully built. The reconstructed model of female pelvic floor muscles was of clear surface and could be continuously rotated in 3D space. Conclusion The model can be used to assist the clinical and anatomical teaching, to assess the relevant external anal sphincter reconstruction surgery, and to research the biomechanics of the external anal sphincter.

关 键 词：磁共振成像 肛门外括约肌 三维重建 

分 类 号：R445.2[医药卫生—影像医学与核医学]