| Additional first-trimester ultrasound markers. | |
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MedLine Citation:
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PMID: 20638573 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The first trimester (11-13 +6 weeks) ultrasound examination is useful for several reasons: determination of an accurate date of confinement, diagnostic purposes, and screening for fetal defects. Nuchal translucency measurement combined with maternal serum markers (free b-human chorionic gonadotropin and pregnancy-associated plasma protein A) is the mainstay of first-trimester screening for chromosomal defects. However, over the past decade additional ultrasound markers have been developed that improve the performance of this type of screening. The novel markers include evaluation of the nasal bone, fronto-maxillary angle measurement, and Doppler evaluations of the blood flow across the tricuspid valve and in the ductus venosus. |
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Authors:
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J Sonek; K Nicolaides |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: Clinics in laboratory medicine Volume: 30 ISSN: 1557-9832 ISO Abbreviation: Clin. Lab. Med. Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-07-19 Completed Date: 2010-11-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8100174 Medline TA: Clin Lab Med Country: United States |
Other Details:
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Languages: eng Pagination: 573-92 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Wright State University, Dayton, OH, USA. jdsonek@mvh.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biological Markers
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analysis Down Syndrome / diagnosis, ultrasonography Female Fetal Heart / ultrasonography Humans Nasal Bone / embryology, ultrasonography Nuchal Translucency Measurement Pregnancy Pregnancy Trimester, First* Ultrasonography, Prenatal / methods*, standards |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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