Four-dimensional ultrasonography of a true knot of the umbilical cord.
case_report · Level V
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- Record sourced from PubMed, PMID 17000232.
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Abstract
We describe the prenatal diagnosis of a true knot of the umbilical cord using the "hanging noose" sign. Changes in the tension of the knot, which are related to fetal movements, were studied with 4-dimensional ultrasonography.
Medical subject headings
- Ultrasonography, Prenatal
- Umbilical Cord