Vasa previa: prenatal detection by three-dimensional ultrasonography.
Ultrasound Obstet Gynecol 2000 Sep;16(4):384-7    (ISSN: 0960-7692)
Lee W; Kirk JS; Comstock CH; Romero R
Division of Fetal Imaging, Department of Obstetrics and Gynecology, William Beaumont Hospital, 3601 West Thirteen Mile Road, Royal Oak, MI 48073-6769, USA.
OBJECTIVE: To describe three-dimensional (3D) ultrasonography (US) for the antepartum diagnosis of vasa previa
DESIGN: This was a descriptive study of two pregnant women who were suspected to have vasa previa by conventional gray-scale ultrasonography. Three-dimensional studies were also performed during the early third trimester to further investigate the possibility of this condition. 
RESULTS: In the first case, 3D US provided gray-scale multiplanar and surface-rendered views of an aberrant vessel over the internal cervical os. For the second case, a 'flight-path' technique allowed the examiner to follow axial views of the endocervical canal toward the internal os until an aberrant vessel was verified. The 'niche-mode' analysis, with and without color power Doppler ultrasonography, was also used to confirm the diagnosis. 
CONCLUSION: Three-dimensional ultrasonography offers several additional imaging tools that are not currently provided by more conventional ultrasonography for the detection of vasa previa. It represents an important adjunct to two-dimensional (2D) studies, especially when this diagnosis is questionable.

Major Subject Heading(s)

Minor Subject Heading(s)

  • Fetus [blood supply]
  • Placenta [blood supply]
  • Pregnancy Complications, Cardiovascular [ultrasonography]
  • Ultrasonography, Doppler, Color [methods]
  • Ultrasonography, Prenatal [methods]
  • Adult
  • Pregnancy Trimester, Third
  • Pregnancy
  • Vagina
Indexing Check Tags: Case Report; Female; Human
Language: English
MEDLINE Indexing Date: 200104
Publication Type: Journal Article
PreMedline Identifier: 0011169317
Unique NLM Identifier: 21115699
Journal Code: IM

 

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