title: [Dynamic three-dimensional ultrasound in the diagnosis of pelvic floor dyssynergia].
abstract: OBJECTIVE
  To explore the feasibility of dynamic three-dimensional ultrasound measurement in the diagnosis of pelvic floor dyssynergia(PFD).
  
  
  METHODS
  Thirty female patients with PFD received dynamic three-dimensional ultrasound. The differences in angle α measured by transperineal three-dimensional ultrasound, and angle β, angle γ, and H line as measured by transanorectal three-dimensional ultrasound were compared between resting state and Valsalva maneuver. In addition, the detective rate of PFD by different parameters was analyzed.
  
  
  RESULTS
  In 30 patients, rectocele was found in 13 cases(43.3%), rectal internal mucous intussusception in 14 cases(46.7%), uterine prolapse in 11 cases(36.7%), and bladder prolapse in 1 case(3.3%). Compared with the resting state, α, β and H decreased obviously, but γ increased apparently in Valsalva maneuver, and differences of these parameters were statistically significant(all P<0.01). Detective rates of PFD for parameters of α, β, γ and H were 93.3%(28/30), 96.7%(29/30), 96.7%(29/30) and 86.7%(26/30), respectively.
  
  
  CONCLUSIONS
  Measurements of α, β, γ and H can provide feasible indicators for clinical diagnosis of PFD.
authors.affiliation: National Chinese Medical Center for Colorectal Surgery, The Third Affiliated Hospital, Nanjing University of Chinese Traditional Medicine, Nanjing 210001, China. njgczx@gmail.com.
authors.forename: Chen-Yi
authors.initials: CY
authors.lastname: Xu
authors.forename: Shu-Qing
authors.initials: SQ
authors.lastname: Ding
authors.forename: Ya-Hong
authors.initials: YH
authors.lastname: Xue
authors.forename: Yi-Jiang
authors.initials: YJ
authors.lastname: Ding
mesh_terms: D001259:Ataxia; D006801:Humans; D017773:Pelvic Floor / Q000000981:diagnostic imaging; D012002:Rectal Diseases / Q000175:diagnosis; D020047:Rectocele; D014465:Ultrasonics; D014463:Ultrasonography