title: Enlarged uterine corpus volume in women with endometriosis: Assessment using three-dimensional reconstruction of pelvic magnetic resonance images.
abstract: OBJECTIVE
  To assess and compare the uterine volume and endometrium length between women with and without endometriosis, using pelvic magnetic resonance imaging scans.
  
  
  METHODS
  In this case-control study, a total of 75 nulligravid women (aged 20-45 years) with regular menstrual cycles whose uterus were free of any surgically confirmed lesions were enrolled. The endometriosis group underwent surgery for endometrioma (n = 39), and the control group underwent surgery for non-endometrioma ovarian cysts (n = 36). The primary outcome was uterine corpus volume, which was assessed using three-dimensional reconstructions of preoperative pelvic magnetic resonance imaging scans.
  
  
  RESULTS
  The mean uterine volume was significantly larger in the endometriosis group than in the control group (mean ± standard deviation, 50.9 ± 14.4 cm3vs 41.7 ± 14.3 cm3; P < 0.01). The longitudinal length and transverse diameter of the corpus and the longitudinal length of the endometrium were also significantly greater in the endometriosis group (all, P < 0.01).
  
  
  CONCLUSIONS
  An increase in uterine volume and endometrium length was observed in women with endometriosis.
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Akemi
authors.initials: A
authors.lastname: Koshiba
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Taisuke
authors.initials: T
authors.lastname: Mori
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Fumitake
authors.initials: F
authors.lastname: Ito
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Tanaka
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Takaoka
authors.affiliation: Department of Radiology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Takahata
authors.affiliation: Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan.
authors.forename: Jo
authors.initials: J
authors.lastname: Kitawaki
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D004715:Endometriosis / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D004717:Endometrium / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D009929:Organ Size; D010048:Ovarian Cysts / Q000601:surgery; D014599:Uterus / Q000000981:diagnostic imaging* / Q000473:pathology*; D055815:Young Adult
keywords: MRI; Osirix; endometriosis; three-dimensional reconstruction; uterine volume