title: [Anatomical characteristics of the pelvic floor muscles in young nulliparous women based on three-dimensional MRI].
abstract: OBJECTIVE
  To analyse anatomical characteristics of the pelvic floor in young nulliparous volunteers based on three-dimensional MRI.
  
  
  METHODS
  Thin-slice MRI was performed in 25 young nulliparous volunteers in Southern Medical University, MRI were imported into Mimics 10.01 for 3D reconstruction.Using 3D models we measured follow indicators: the levator ani muscle volume (LVOL) , levator plate angle (LPA), levator hiatus width (LH-W)and length (LH-L), distance between symphysis and levator sling muscle (LSG).
  
  
  RESULTS
  (1) 25 cases of pelvic three-dimensional models was successfully constructed, including the pelvis, pelvic organs and the pelvic floor muscles (including the ischial coccyx muscle, levator ani muscle and its various components, perineal muscles), the models could be able to clearly reflect the level of the pelvic floor muscles; (2) 25 cases of levator ani muscle measurement results:LVOL: (34 ± 6) cm(3), LPA: (43 ± 4) °, LH-W: (33 ± 4) mm, LH-L: (54 ± 5) mm, left LSG: (18.8 ± 2.5) mm, right LSG: (18.3 ± 2.5) mm.
  
  
  CONCLUSIONS
  It is an effective way to use the computer to reconstruct the 3D model of female pelvic floor muscles using MRI data set. The quantitative analysis of levator ani muscle three-dimensional model can be assessed pelvic floor function, which is of great value in clinical practice.It is helpful to understand the pelvic floor disorders pathogenesis, clinical diagnosis, treatment options and treatment evaluation to provide reference standards.
authors.affiliation: Department of Obstetrics and Gynecology, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Ping
authors.forename: Chen
authors.initials: C
authors.lastname: Ruolan
authors.affiliation: Email: jieru@163.com.
authors.forename: Chen
authors.initials: C
authors.lastname: Chunlin
authors.forename: Huang
authors.initials: H
authors.lastname: Lu
authors.forename: Guo
authors.initials: G
authors.lastname: Chuanjia
authors.forename: Chen
authors.initials: C
authors.lastname: Lan
authors.forename: Peng
authors.initials: P
authors.lastname: Cheng
authors.forename: Wang
authors.initials: W
authors.lastname: Jun
authors.forename: Liao
authors.initials: L
authors.lastname: Kedan
authors.forename: Liang
authors.initials: L
authors.lastname: Xuan
authors.forename: Wang
authors.initials: W
authors.lastname: Jianping
authors.forename: Ren
authors.initials: R
authors.lastname: Daokun
authors.forename: Tan
authors.initials: T
authors.lastname: Huanqing
authors.forename: Tang
authors.initials: T
authors.lastname: Lei
authors.forename: Zhong
authors.initials: Z
authors.lastname: Shizhen
mesh_terms: D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D018482:Muscle, Skeletal / Q000473:pathology*; D010298:Parity; D017773:Pelvic Floor / Q000033:anatomy & histology*; D059952:Pelvic Floor Disorders / Q000473:pathology*; D010502:Perineum / Q000033:anatomy & histology*