title: A systematic technique using 3-dimensional ultrasound provides a simple and reproducible mode to evaluate the corpus callosum.
abstract: OBJECTIVE
  The aim of this study was to evaluate a rapid 3-dimensional ultrasound-assisted technique for evaluation of the corpus callosum as an integral part of the anatomic survey.
  
  
  METHODS
  Transabdominal 3-dimensioal gray scale and power Doppler volumes of the fetal brain were acquired in 102 consecutive healthy fetuses at 20-23 postmenstrual weeks. Offline analysis was performed by 2 of the authors using a systematic approach of "volume manipulation." Diagnostic-quality visualization of the corpus callosum and the pericallosal arteries on the median plane was recorded by the 2 examiners independently.
  
  
  RESULTS
  The median plane was easily obtained in all cases. Diagnostic-quality images of the corpus callosum were recorded in 93.1% and 99.0% and of the pericallosal arteries in 94.4% and 95.5% of the cases, by the 2 examiners, respectively.
  
  
  CONCLUSIONS
  Three-dimensional ultrasound enables a rapid and easy evaluation of the corpus callosum that may facilitate its inclusion as an integral part of the routine anatomic survey.
authors.affiliation: Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY, USA.
authors.forename: Eran
authors.initials: E
authors.lastname: Bornstein
authors.forename: Ana
authors.initials: A
authors.lastname: Monteagudo
authors.forename: Rosalba
authors.initials: R
authors.lastname: Santos
authors.forename: Sean M
authors.initials: SM
authors.lastname: Keeler
authors.forename: Ilan E
authors.initials: IE
authors.lastname: Timor-Tritsch
mesh_terms: D003337:Corpus Callosum / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D011247:Pregnancy; D011446:Prospective Studies; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal / Q000379:methods*