Have an account? Login or Register
Bladder journal logo
  • Home
  • About
    • About Bladder
    • Editorial Team
    • Information for Authors
  • Login
  • Register
  • Search
  • Current
  • Archives
  • Online Submission

Article Tools

Full Text
PDF
Export Reference
Email this article (Login required)
Email the author (Login required)

Journal Content


Browse

  • By Issue
  • By Author
  • By Title

Help

Journal Help
Home > Vol 5, No 1 (2018) > Nagle

DOI: http://dx.doi.org/10.14440/bladder.2018.565

Full Text:

HTML PDF

Comparison of 2D and 3D ultrasound methods to measure serial bladder volumes during filling: Steps toward development of non-invasive ultrasound urodynamics

Anna S. Nagle, Rachel J. Bernardo, Jary Varghese, Laura R. Carucci, Adam P. Klausner, John E. Speich

Abstract

Objectives: Non-invasive methods to objectively characterize overactive bladder (OAB) and other forms of voiding dysfunction using real-time ultrasound are currently under development but require accurate and precise serial measurements of bladder volumes during filling. This study’s objective was to determine the most accurate and precise ultrasound-based method of quantifying serial bladder volumes during urodynamics (UD).


Methods: Twelve female participants with OAB completed an extended UD procedure with the addition of serial bladder ultrasound images captured once per minute. Bladder volume was measured using three ultrasound methods: (1) Vspheroid: two-dimensional (2D) method calculated assuming spheroid geometry; (2) Vbih: 2D correction method obtained by multiplying Vspheroid by a previously derived correction factor of 1.375; and (3) V3D: three-dimensional (3D) method obtained by manually tracing the bladder outline in six planes automatically reconstructed into a solid rendered volume. These volumes were compared to a control (Vcontrol) obtained by adding UD infused volume and the volume of estimated urine production.


Results: Based on linear regression analysis, both Vbih and V3D were fairly accurate estimators of Vcontrol, but V3D was more precise. Vspheroid significantly underestimated Vcontrol.


Conclusions: Although the Vbih and V3D methods were more accurate than the more-commonly used Vspheroid method for measuring bladder volumes during UD, the V3D method was the most precise and could best account for non-uniform bladder geometries. Therefore, the V3D method may represent the best tool required for the continued development of non-invasive methods to diagnose OAB and other forms of voiding dysfunction.

Keywords

overactive bladder, transabdominal ultrasound imaging, urodynamics, volume calculations, volumetric ultrasound
Citation: Nagle AS, Bernardo RJ, Varghese J, Carucci LR, Klausner AP, Speich JE. Comparison of 2D and 3D ultrasound methods to measure serial bladder volumes during filling: Steps toward development of non-invasive ultrasound urodynamics. Bladder 2018;5(1):e32. doi: 10.14440/bladder.2018.565

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License..


About

  • About Us
  • Editorial Team
  • Editorial Board
  • Privacy Statement

Resources

  • Current Issue
  • Archives
  • For Librarians
  • Help

Subscriptions

  • Open Access Policy
  • Copyright Notice
  • Notifications

QUICK LINKS

  • Online Submission
  • Sign up
  • Site Map
  • Search
  • Contact us

FOLLOW US ON

Copyright© 2013-2017, Bladder, All rights reserved.