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Normal ultrasonic fetal growth ratios evaluated in cases of fetal disproportion

Crang Svalenius, Elizabeth LU and Jorgensen, C (1991) In Journal of Ultrasound in Medicine 10(2). p.89-92
Abstract
During a 2-year period, 5476 normal routine obstetrical ultrasound investigations were performed in the 2nd trimester (16th to 20th week). Data on biparietal diameter (BPD), abdominal diameter (AD) and femur length (FL) have been obtained from this material. Ratios between BPD/AD and BPD/FL have been calculated, and from these ratios, graphs were constructed. Only nine normal fetuses (0.2%) were found to be outside mean +/- 3 SD, and none of the normal cases were +/- 4 SD, so this is perhaps a better guideline for those warranting further investigation. To evaluate if these ratios could better reflect disproportional fetal growth, three cases of triploidy and four cases of dwarfism were tested against these ratios. Triploidy was obvious on... (More)
During a 2-year period, 5476 normal routine obstetrical ultrasound investigations were performed in the 2nd trimester (16th to 20th week). Data on biparietal diameter (BPD), abdominal diameter (AD) and femur length (FL) have been obtained from this material. Ratios between BPD/AD and BPD/FL have been calculated, and from these ratios, graphs were constructed. Only nine normal fetuses (0.2%) were found to be outside mean +/- 3 SD, and none of the normal cases were +/- 4 SD, so this is perhaps a better guideline for those warranting further investigation. To evaluate if these ratios could better reflect disproportional fetal growth, three cases of triploidy and four cases of dwarfism were tested against these ratios. Triploidy was obvious on the BPD/AD graph and dwarfism on the BPD/FL graph. The ratios were not found to be conclusive in the intrauterine diagnosis of trisomy 21 or of trisomy 18, as only 4 of 17 cases were obvious on the graphs. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Ultrasound in Medicine
volume
10
issue
2
pages
89 - 92
publisher
American Institute of Ultrasound in Medicine
external identifiers
  • pmid:2020055
  • scopus:0026061829
ISSN
1550-9613
language
English
LU publication?
yes
id
309af456-e812-4557-9e21-4259c301f10a (old id 1105734)
date added to LUP
2008-08-04 10:30:43
date last changed
2017-01-01 05:15:22
@article{309af456-e812-4557-9e21-4259c301f10a,
  abstract     = {During a 2-year period, 5476 normal routine obstetrical ultrasound investigations were performed in the 2nd trimester (16th to 20th week). Data on biparietal diameter (BPD), abdominal diameter (AD) and femur length (FL) have been obtained from this material. Ratios between BPD/AD and BPD/FL have been calculated, and from these ratios, graphs were constructed. Only nine normal fetuses (0.2%) were found to be outside mean +/- 3 SD, and none of the normal cases were +/- 4 SD, so this is perhaps a better guideline for those warranting further investigation. To evaluate if these ratios could better reflect disproportional fetal growth, three cases of triploidy and four cases of dwarfism were tested against these ratios. Triploidy was obvious on the BPD/AD graph and dwarfism on the BPD/FL graph. The ratios were not found to be conclusive in the intrauterine diagnosis of trisomy 21 or of trisomy 18, as only 4 of 17 cases were obvious on the graphs.},
  author       = {Crang Svalenius, Elizabeth and Jorgensen, C},
  issn         = {1550-9613},
  language     = {eng},
  number       = {2},
  pages        = {89--92},
  publisher    = {American Institute of Ultrasound in Medicine},
  series       = {Journal of Ultrasound in Medicine},
  title        = {Normal ultrasonic fetal growth ratios evaluated in cases of fetal disproportion},
  volume       = {10},
  year         = {1991},
}