Document Detail

Transvaginal assessment of fetal anatomy at 11 to 16 weeks of gestation in relation to fetal position.
MedLine Citation:
PMID:  10720868     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To investigate the ability of the high-frequency transvaginal scanning technique to assess embryo-fetal anatomy in early pregnancy in relation to fetal position and in comparison with transabdominal scan. METHODS: A study population of 1,402 pregnant women were examined by transvaginal ultrasonography performed at 10(+1) to 16(+0) weeks of pregnancy. At 14(+1) to 16(+0) weeks of gestation, an ultrasonographic examination was performed in 247 pregnant women by transvaginal and transabdominal route. The criteria necessary for an adequate visualization of fetal organs and structures were met. RESULTS: The visualization rate of complete fetal anatomy increased with increase in menstrual age and fetal position affected this possibility. A detailed brain anatomy was more easily viewed with the fetus in the cephalic or transverse position than in the breech position, whereas the thoracic and abdominal anatomy were viewed more easily with the transverse position compared to the cephalic or breech position. Complete surveys of fetal anatomy were possible in 50% and 62% of women with transabdominal scan and in 85% and 85% with transvaginal one at 15 and 16 weeks' gestation, respectively (p < 0.001). CONCLUSION: A detailed assessment of fetal structures was possible in most cases at 13 weeks of gestation. Fetal position can influence this capability. At 14(+1) to 15(+0) weeks' gestation more anatomical surveys were completed with a transvaginal scan compared to a transabdominal one and this was influenced by fetal position.
P Rosati; L Guariglia; A Bertuzzi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Fetal diagnosis and therapy     Volume:  15     ISSN:  1015-3837     ISO Abbreviation:  Fetal. Diagn. Ther.     Publication Date:    2000 Mar-Apr
Date Detail:
Created Date:  2000-05-05     Completed Date:  2000-05-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9107463     Medline TA:  Fetal Diagn Ther     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  63-70     Citation Subset:  IM    
Copyright Information:
Copyright 2000 S. Karger AG, Basel.
Department of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
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MeSH Terms
Fetus / anatomy & histology*
Gestational Age*
Labor Presentation
Ultrasonography, Prenatal*

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