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Racial differences in pelvic floor muscle thickness in asymptomatic nulliparas as seen on magnetic resonance imaging-based three-dimensional color thickness mapping.

Publication ,  Journal Article
Downing, KT; Hoyte, LP; Warfield, SK; Weidner, AC
Published in: Am J Obstet Gynecol
December 2007

OBJECTIVE: The objective of the study was to compare levator and obturator thickness between asymptomatic black and white nulliparas using three-dimensional (3D) magnetic resonance imaging (MRI) color mapping. STUDY DESIGN: 3D color-mapped MRI of pelvic muscles were evaluated in 22 similar nulliparas (12 black, 10 white). Levator and obturator (OI) were divided into right and left. Levator was subdivided into puborectalis (PR) and ileococcygeus (IC) portions. Maximal thickness of each muscle was recorded and compared between groups. Nonparametric testing was applied, with significance at P = .05. RESULTS: Levator thickness was significantly greater in blacks bilaterally (median right PR, 8.5 vs 6.0 mm; P = .001; right IC, 6.5 vs 4.5 mm; P = .002; left PR, 9.5 vs 5.75 mm; P = .0002; left IC, 6.5 vs 5.75 mm; P = .02). Obturator thicknesses were similar (right OI, 20.0 vs 19.5 mm; left OI, 19.25 vs 19.25 mm; P = NS). CONCLUSION: Significantly thicker levators but similar obturators were seen in black nulliparas, compared with white nulliparas. These levator differences may influence pelvic floor dysfunction risk. The clinical significance of these findings is under study.

Duke Scholars

Published In

Am J Obstet Gynecol

DOI

EISSN

1097-6868

Publication Date

December 2007

Volume

197

Issue

6

Start / End Page

625.e1 / 625.e4

Location

United States

Related Subject Headings

  • White People
  • Pelvic Floor
  • Obstetrics & Reproductive Medicine
  • Muscles
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Humans
  • Female
  • Black People
  • Adult
 

Citation

APA
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ICMJE
MLA
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Downing, K. T., Hoyte, L. P., Warfield, S. K., & Weidner, A. C. (2007). Racial differences in pelvic floor muscle thickness in asymptomatic nulliparas as seen on magnetic resonance imaging-based three-dimensional color thickness mapping. Am J Obstet Gynecol, 197(6), 625.e1-625.e4. https://doi.org/10.1016/j.ajog.2007.08.015
Downing, Keith T., Lennox P. Hoyte, Simon K. Warfield, and Alison C. Weidner. “Racial differences in pelvic floor muscle thickness in asymptomatic nulliparas as seen on magnetic resonance imaging-based three-dimensional color thickness mapping.Am J Obstet Gynecol 197, no. 6 (December 2007): 625.e1-625.e4. https://doi.org/10.1016/j.ajog.2007.08.015.
Downing, Keith T., et al. “Racial differences in pelvic floor muscle thickness in asymptomatic nulliparas as seen on magnetic resonance imaging-based three-dimensional color thickness mapping.Am J Obstet Gynecol, vol. 197, no. 6, Dec. 2007, pp. 625.e1-625.e4. Pubmed, doi:10.1016/j.ajog.2007.08.015.
Journal cover image

Published In

Am J Obstet Gynecol

DOI

EISSN

1097-6868

Publication Date

December 2007

Volume

197

Issue

6

Start / End Page

625.e1 / 625.e4

Location

United States

Related Subject Headings

  • White People
  • Pelvic Floor
  • Obstetrics & Reproductive Medicine
  • Muscles
  • Magnetic Resonance Imaging
  • Imaging, Three-Dimensional
  • Humans
  • Female
  • Black People
  • Adult