title: Dynamic magnetic resonance imaging before and 6 months after laparoscopic sacrocolpopexy.
abstract: OBJECTIVE
  The objective of this study was to correlate dynamic magnetic resonance imaging (MRI) with Pelvic Organ Prolapse Quantification (POP-Q) measurements and pelvic floor symptoms in order to determine the value of dynamic MRI for evaluating vaginal vault prolapse both before and 6 months after laparoscopic sacrocolpopexy.
  
  
  METHODS
  This was a prospective, single-center cohort study in 43 patients who underwent a modified laparoscopic sacrocolpopexy/hysteropexy operation using bone-anchor fixation and synthetic mesh. The study included dynamic MRI, POP-Q staging, and validated questionnaires before and 6 months after laparoscopic sacrocolpopexy. To assess MRI data, the pubococcygeal reference line and specifically defined anatomical landmarks for the separate compartments were used. Differences between pre- and postoperative measurements were evaluated with the Wilcoxon signed-rank test, and correlations at the 0.05 level were considered to be significant (Pearson correlation, two tailed).
  
  
  RESULTS
  At 6 months, a statistically significant improvement was seen in POP-Q staging for all compartments. Dynamic MRI measurements only revealed a significant improvement after surgery for the apical compartment. The correlation between (changes in) MRI measurements, POP-Q measurements, and validated questionnaires was poor.
  
  
  CONCLUSIONS
  The value of dynamic MRI for evaluating and documenting changes in vaginal vault support and position after laparoscopic sacrocolpopexy is limited due to the poor correlation with both POP-Q staging and pelvic floor symptoms.
authors.affiliation: Department of Obstetrics & Gynecology, Sint Franciscus Gasthuis, 3045 PM, Rotterdam, The Netherlands, rmfvdwei@knmg.nl.
authors.forename: Robin M F
authors.initials: RM
authors.lastname: van der Weiden
authors.forename: Elena
authors.initials: E
authors.lastname: Rociu
authors.forename: Guido H H
authors.initials: GH
authors.lastname: Mannaerts
authors.forename: Marcel H A
authors.initials: MH
authors.lastname: van Hooff
authors.forename: Mark E
authors.initials: ME
authors.lastname: Vierhout
authors.forename: Mariella I J
authors.initials: MI
authors.lastname: Withagen
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D013509:Gynecologic Surgical Procedures; D006801:Humans; D008279:Magnetic Resonance Imaging; D017063:Outcome Assessment, Health Care; D056887:Pelvic Organ Prolapse / Q000175:diagnosis / Q000601:surgery*; D011446:Prospective Studies