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Ultrasound weight estimation of large fetuses.

Lindell, Gun LU ; Källén, Karin LU and Marsal, Karel LU (2012) In Acta Obstetricia et Gynecologica Scandinavica 91(10). p.1218-1225
Abstract
Objective:

To compare the accuracy of fetal weight estimation in large fetuses using four ultrasound formulas.



Design:

Prospective comparative study.



Setting:

University Hospital, Lund, Sweden.



Population:

Large-for-gestational age fetuses (n = 114) at a routine ultrasound examination in the third trimester.



Methods:

Persson & Weldner two-dimensional formula was compared with Hart et al. two-dimensional formula incorporating maternal weight, and Lee et al. and Lindell & Maršál three-dimensional formulas. The formulas are based on two-dimensional measurements of fetal head, abdomen, and femur, and... (More)
Objective:

To compare the accuracy of fetal weight estimation in large fetuses using four ultrasound formulas.



Design:

Prospective comparative study.



Setting:

University Hospital, Lund, Sweden.



Population:

Large-for-gestational age fetuses (n = 114) at a routine ultrasound examination in the third trimester.



Methods:

Persson & Weldner two-dimensional formula was compared with Hart et al. two-dimensional formula incorporating maternal weight, and Lee et al. and Lindell & Maršál three-dimensional formulas. The formulas are based on two-dimensional measurements of fetal head, abdomen, and femur, and three-dimensional volumetry of fetal abdomen and thigh.



Main outcome measure:

Accuracy in detection of fetuses with birth weight >4 000 g and >4 500 g.



Results:

For fetuses >4 000 g, Lindell & Maršál three-dimensional formula showed significantly smaller mean absolute percentage error than Persson & Weldner two-dimensional, and Lee et al. three-dimensional formulas (p = 0.04 and p < 0.001, respectively). No significant difference between Lindell & Maršál three-dimensional and Hart et al. two-dimensional formulas was found. Receiver operating characteristic curve showed higher detection rate for fetuses with birth weight >4 500 g using three-dimensional compared to two-dimensional technique. The best performance in detecting fetuses with birth weight >4 500 g showed Lindell & Maršál three-dimensional formula: for estimated fetal weight >4 300 g the detection rate was 93% and false positive rate 38%.



Conclusion:

The ability to detect macrosomic fetuses in a preselected high-risk group was higher using the fetal weight estimation with a three-dimensional compared to a two-dimensional ultrasound technique, with or without maternal weight included. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Obstetricia et Gynecologica Scandinavica
volume
91
issue
10
pages
1218 - 1225
publisher
Wiley-Blackwell
external identifiers
  • WOS:000308887300015
  • PMID:22762512
  • Scopus:84866506899
ISSN
1600-0412
DOI
10.1111/j.1600-0412.2012.01495.x
language
English
LU publication?
yes
id
8ff134eb-f352-4b61-88dc-8ffede18e053 (old id 2967465)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/22762512?dopt=Abstract
date added to LUP
2012-08-09 16:37:23
date last changed
2016-10-13 04:23:52
@misc{8ff134eb-f352-4b61-88dc-8ffede18e053,
  abstract     = {Objective:<br/><br>
To compare the accuracy of fetal weight estimation in large fetuses using four ultrasound formulas. <br/><br>
<br/><br>
Design:<br/><br>
Prospective comparative study. <br/><br>
<br/><br>
Setting:<br/><br>
University Hospital, Lund, Sweden. <br/><br>
<br/><br>
Population:<br/><br>
Large-for-gestational age fetuses (n = 114) at a routine ultrasound examination in the third trimester. <br/><br>
<br/><br>
Methods:<br/><br>
Persson &amp; Weldner two-dimensional formula was compared with Hart et al. two-dimensional formula incorporating maternal weight, and Lee et al. and Lindell &amp; Maršál three-dimensional formulas. The formulas are based on two-dimensional measurements of fetal head, abdomen, and femur, and three-dimensional volumetry of fetal abdomen and thigh. <br/><br>
<br/><br>
Main outcome measure:<br/><br>
Accuracy in detection of fetuses with birth weight &gt;4 000 g and &gt;4 500 g. <br/><br>
<br/><br>
Results:<br/><br>
For fetuses &gt;4 000 g, Lindell &amp; Maršál three-dimensional formula showed significantly smaller mean absolute percentage error than Persson &amp; Weldner two-dimensional, and Lee et al. three-dimensional formulas (p = 0.04 and p &lt; 0.001, respectively). No significant difference between Lindell &amp; Maršál three-dimensional and Hart et al. two-dimensional formulas was found. Receiver operating characteristic curve showed higher detection rate for fetuses with birth weight &gt;4 500 g using three-dimensional compared to two-dimensional technique. The best performance in detecting fetuses with birth weight &gt;4 500 g showed Lindell &amp; Maršál three-dimensional formula: for estimated fetal weight &gt;4 300 g the detection rate was 93% and false positive rate 38%. <br/><br>
<br/><br>
Conclusion:<br/><br>
The ability to detect macrosomic fetuses in a preselected high-risk group was higher using the fetal weight estimation with a three-dimensional compared to a two-dimensional ultrasound technique, with or without maternal weight included.},
  author       = {Lindell, Gun and Källén, Karin and Marsal, Karel},
  issn         = {1600-0412},
  language     = {eng},
  number       = {10},
  pages        = {1218--1225},
  publisher    = {ARRAY(0xc4c5330)},
  series       = {Acta Obstetricia et Gynecologica Scandinavica},
  title        = {Ultrasound weight estimation of large fetuses.},
  url          = {http://dx.doi.org/10.1111/j.1600-0412.2012.01495.x},
  volume       = {91},
  year         = {2012},
}