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Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging.

Publication ,  Journal Article
Willms, AB; Brown, ED; Kettritz, UI; Kuller, JA; Semelka, RC
Published in: Radiology
April 1995

PURPOSE: To demonstrate the normal involution process of the post-partum pelvis with serial magnetic resonance (MR) imaging. MATERIALS AND METHODS: MR imaging was performed in 14 women after uncomplicated vaginal delivery. Six women underwent serial MR examinations at less than 30 hours and at 1 week, 2 weeks, 6 weeks, and 6 months after delivery; eight women were examined only within 30 hours of delivery. The dimensions and signal intensity of the uterus and cervix and the appearance of other pelvic structures were evaluated. RESULTS: The mean length of the uterine corpus was 13.8 cm within 30 hours of delivery and 5.0 cm at 6 months. The mean length of the cervix was 5.6 cm within 30 hours of delivery and 2.9 cm at 6 months. The junctional zone was not visible before 2 weeks; however, it was visible in all cases at 6 months. The outer cervical stroma had high signal intensity less than 30 hours after delivery and intermediate signal intensity thereafter. The inner cervical stroma was visible as a low-signal-intensity stripe on all images. CONCLUSION: Knowledge of the normal MR appearance of the involuting postpartum pelvis provides a baseline for interpretation of MR images obtained during this period.

Duke Scholars

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

April 1995

Volume

195

Issue

1

Start / End Page

91 / 94

Location

United States

Related Subject Headings

  • Uterus
  • Time Factors
  • Reference Values
  • Pregnancy
  • Postpartum Period
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Labor, Obstetric
  • Humans
  • Female
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Willms, A. B., Brown, E. D., Kettritz, U. I., Kuller, J. A., & Semelka, R. C. (1995). Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging. Radiology, 195(1), 91–94. https://doi.org/10.1148/radiology.195.1.7892501
Willms, A. B., E. D. Brown, U. I. Kettritz, J. A. Kuller, and R. C. Semelka. “Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging.Radiology 195, no. 1 (April 1995): 91–94. https://doi.org/10.1148/radiology.195.1.7892501.
Willms AB, Brown ED, Kettritz UI, Kuller JA, Semelka RC. Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging. Radiology. 1995 Apr;195(1):91–4.
Willms, A. B., et al. “Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging.Radiology, vol. 195, no. 1, Apr. 1995, pp. 91–94. Pubmed, doi:10.1148/radiology.195.1.7892501.
Willms AB, Brown ED, Kettritz UI, Kuller JA, Semelka RC. Anatomic changes in the pelvis after uncomplicated vaginal delivery: evaluation with serial MR imaging. Radiology. 1995 Apr;195(1):91–94.
Journal cover image

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

April 1995

Volume

195

Issue

1

Start / End Page

91 / 94

Location

United States

Related Subject Headings

  • Uterus
  • Time Factors
  • Reference Values
  • Pregnancy
  • Postpartum Period
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Labor, Obstetric
  • Humans
  • Female