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Reference data representative of normal findings at three-dimensional power Doppler ultrasound examination of the cervix from 17 to 41 gestational weeks.

Rovas, Linas LU ; Sladkevicius, Povilas LU ; Strobel, E and Valentin, Lil LU orcid (2006) In Ultrasound in Obstetrics & Gynecology 28(Aug 29). p.761-767
Abstract
Objectives To develop normal reference ranges for cervical volume and vascular indices using three-dimensional (3D) power Doppler ultrasonograpby from 17 to 41 gestational weeks. Methods This was a cross-sectional study of 352 nulliparous and 291 parous women who delivered at term and underwent transvaginal 3D power Doppler ultrasound examination of the cervix once at 17 to 41 weeks' gestation. We examined approximately 25 women in each gestational week. Cervical volume, vascularization index (VI), flow index (H) and vascularization flow index (VFI) were calculated. Results There was no change in cervical volume between 17 and 40 weeks' gestation. At 41 weeks cervical volume was slightly smaller than it was at 17-40 weeks (P = 0.03 for... (More)
Objectives To develop normal reference ranges for cervical volume and vascular indices using three-dimensional (3D) power Doppler ultrasonograpby from 17 to 41 gestational weeks. Methods This was a cross-sectional study of 352 nulliparous and 291 parous women who delivered at term and underwent transvaginal 3D power Doppler ultrasound examination of the cervix once at 17 to 41 weeks' gestation. We examined approximately 25 women in each gestational week. Cervical volume, vascularization index (VI), flow index (H) and vascularization flow index (VFI) were calculated. Results There was no change in cervical volume between 17 and 40 weeks' gestation. At 41 weeks cervical volume was slightly smaller than it was at 17-40 weeks (P = 0.03 for nulliparous women and P = 0.08 for parous women). The cervical volume was larger in parous than it was in nulliparous women (median 38 cm(3) VS. 32 cm(3) at 17-40 weeks, P < 0.0001; median 31 cm(3) us. 22 cm3 at 41 gestational weeks, P = 0.288). FI did not differ between nulliparous and parous women and remained unchanged between 17 and 41 weeks' gestation (median 30.6, range 21.2-55.2). VI and VFI did not change consistently front 17 to 41 weeks, but the values were higher in parous than they were in nulliparous women at 17-30weeks (median VI 5.3% vs. 3.1%, P < 0.0001; median VFI 1.6 vs. 0.9, P < 0.0001). At 31-41 gestational weeks the median VI for all women irrespective of parity was 4.9% and the median VFI was 1.4. Conclusion Reference values for cervical volume and blood flow indices as assessed by 3D power Doppler ultrasonograpby have been established for the second half of pregnancy. These lay the basis for studies of pathological conditions. Copyright (c) 2006 ISUOG. Published by John Wiley & Sons, Ltd. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
three-dimensional imaging, pregnancy, cervix uteri, Doppler ultrasonography, reference values
in
Ultrasound in Obstetrics & Gynecology
volume
28
issue
Aug 29
pages
761 - 767
publisher
John Wiley and Sons
external identifiers
  • wos:000242225300004
  • scopus:33751205316
ISSN
1469-0705
DOI
10.1002/uog.2857
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Obstetric, Gynaecological and Prenatal Ultrasound Research Unit (013242720), Pediatrics/Urology/Gynecology/Endocrinology (013240400)
id
358ada59-2ec3-4610-92c1-19f7d774619c (old id 161363)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16941580&dopt=Abstract
date added to LUP
2016-04-01 15:29:33
date last changed
2021-02-17 06:27:32
@article{358ada59-2ec3-4610-92c1-19f7d774619c,
  abstract     = {Objectives To develop normal reference ranges for cervical volume and vascular indices using three-dimensional (3D) power Doppler ultrasonograpby from 17 to 41 gestational weeks. Methods This was a cross-sectional study of 352 nulliparous and 291 parous women who delivered at term and underwent transvaginal 3D power Doppler ultrasound examination of the cervix once at 17 to 41 weeks' gestation. We examined approximately 25 women in each gestational week. Cervical volume, vascularization index (VI), flow index (H) and vascularization flow index (VFI) were calculated. Results There was no change in cervical volume between 17 and 40 weeks' gestation. At 41 weeks cervical volume was slightly smaller than it was at 17-40 weeks (P = 0.03 for nulliparous women and P = 0.08 for parous women). The cervical volume was larger in parous than it was in nulliparous women (median 38 cm(3) VS. 32 cm(3) at 17-40 weeks, P &lt; 0.0001; median 31 cm(3) us. 22 cm3 at 41 gestational weeks, P = 0.288). FI did not differ between nulliparous and parous women and remained unchanged between 17 and 41 weeks' gestation (median 30.6, range 21.2-55.2). VI and VFI did not change consistently front 17 to 41 weeks, but the values were higher in parous than they were in nulliparous women at 17-30weeks (median VI 5.3% vs. 3.1%, P &lt; 0.0001; median VFI 1.6 vs. 0.9, P &lt; 0.0001). At 31-41 gestational weeks the median VI for all women irrespective of parity was 4.9% and the median VFI was 1.4. Conclusion Reference values for cervical volume and blood flow indices as assessed by 3D power Doppler ultrasonograpby have been established for the second half of pregnancy. These lay the basis for studies of pathological conditions. Copyright (c) 2006 ISUOG. Published by John Wiley &amp; Sons, Ltd.},
  author       = {Rovas, Linas and Sladkevicius, Povilas and Strobel, E and Valentin, Lil},
  issn         = {1469-0705},
  language     = {eng},
  number       = {Aug 29},
  pages        = {761--767},
  publisher    = {John Wiley and Sons},
  series       = {Ultrasound in Obstetrics & Gynecology},
  title        = {Reference data representative of normal findings at three-dimensional power Doppler ultrasound examination of the cervix from 17 to 41 gestational weeks.},
  url          = {https://lup.lub.lu.se/search/ws/files/4404696/625598.pdf},
  doi          = {10.1002/uog.2857},
  volume       = {28},
  year         = {2006},
}