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@ARTICLE{Alt:860482,
      author       = {Alt, C. D. and Katzenberger, S. M. and Hallscheidt, P. and
                      Sohn, C. and Kauczor, H. U. and Eickhoff, Simon and Brocker,
                      K. A.},
      title        = {{U}rethral length and bladder neck behavior: can dynamic
                      magnetic resonance imaging give the same results as
                      introital ultrasound?},
      journal      = {Archives of gynecology and obstetrics},
      volume       = {299},
      number       = {3},
      issn         = {1432-0711},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2019-01236},
      pages        = {809-816},
      year         = {2019},
      note         = {The trial was self-funded.},
      abstract     = {Purpose To compare dynamic magnetic resonance imaging
                      (dMRI) and introital ultrasound results with regard to
                      urethral length measurements and the evaluation of bladder
                      neck changes.MethodsRetrospective analyses of urethral
                      length measurements and detection of bladder neck changes
                      (rotated/vertical bladder neck descent, urethral funneling)
                      were conducted in women—scheduled for surgical treatment
                      with alloplastic material—who had undergone introital
                      ultrasound and dMRI presurgery and 3 months postsurgery.
                      Measurement differences between both imaging modalities were
                      evaluated by assessing the confidence interval for the
                      difference in means between the datasets using bootstrap
                      analysis.ResultsBased on data from 40 patients (320 image
                      series), the urethra could be clearly measured on every pre-
                      and postsurgical dMRI dataset but not on preoperative
                      ultrasound images in nine women during Valsalva maneuver due
                      to a large cystocele. The estimation of the mean difference
                      distribution based on 500,000 bootstrap resamples indicated
                      that the urethral length was measured shorter by dMRI pre-
                      and postsurgery at rest and postsurgery during Valsalva
                      maneuver (median 1.6–3.1 mm) but longer by dMRI (median
                      0.2 mm) during Valsalva maneuver presurgery.
                      Rotated/vertical bladder neck descent and urethral funneling
                      diagnoses showed concordance of $67–74\%$ in the direct
                      comparison of patients; the estimation of the concordance
                      indicated poorer outcomes with $50–72\%.ConclusionsMetric$
                      information on urethral length from dMRI is comparable to
                      that from introital ultrasound. dMRI is more advantageous in
                      cases with an extended organ prolapse. At present, dMRI does
                      not give the same diagnosis on bladder neck changes as
                      introital ultrasound does.},
      cin          = {INM-7},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-7-20090406},
      pnm          = {574 - Theory, modelling and simulation (POF3-574)},
      pid          = {G:(DE-HGF)POF3-574},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30706182},
      UT           = {WOS:000459760600025},
      doi          = {10.1007/s00404-019-05060-9},
      url          = {https://juser.fz-juelich.de/record/860482},
}