title: Introduction to a new technology for measuring urethral pressures: 3D high-resolution manometry.
abstract: OBJECTIVE
  This video introduces a 3D high-resolution manometry (HRM) system to the field of urogynecology. We demonstrate how to obtain and interpret dynamic urethral pressures with this measurement system and use it to evaluate pre- and postoperative women.
  
  
  METHODS
  The 3D HRM catheter is ∼12 F; 11 cm of its length has pressure sensors with eight circumferentially distributed pressure-sensitive segments that collect and transmit individual pressure measurements to construct a 3D pressure map. In this video, we demonstrate the output display of the 3D HRM measurement system.
  
  
  RESULTS
  Pressure output maps are shown for one woman with stress urinary incontinence (SUI) and one with a history of SUI who underwent successful midurethral sling insertion. We also show a summary of 3D pressure-measurement patterns of 44 women who underwent pressure measurements to evaluate qualitatively the 3D pressure profile of the urethra in an effort to better understand pelvic floor and urethral sphincter physiology.
  
  
  CONCLUSIONS
  Advanced HRM technology to measure urethral pressures under cough and strain conditions without withdrawal techniques provides new insights into the continence mechanism in continent and incontinent women and after continence surgeries.
authors.affiliation: Department of Obstetrics and Gynecology, Division of Urogynecology, University of Washington Medical Center, 1959 NE Pacific St, Box 356460, Seattle, WA, 98195, USA, akirby@uw.edu.
authors.forename: Anna C
authors.initials: AC
authors.lastname: Kirby
authors.forename: Jasmine
authors.initials: J
authors.lastname: Tan-Kim
authors.forename: Charles W
authors.initials: CW
authors.lastname: Nager
mesh_terms: D057785:Catheters; D005260:Female; D006801:Humans; D008365:Manometry / Q000295:instrumentation* / Q000379:methods; D011312:Pressure; D012984:Software; D014160:Transducers, Pressure; D014521:Urethra / Q000502:physiology*