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© 2006 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 25:509-514 • 0278-4297

Image Presentation

Three-Dimensional Ultrasonographic Reslicing of the Fetal Brain to Assist Prenatal Diagnosis of Central Nervous System Anomalies

Karim D. Kalache, MD, Katja Eder, Tilman Esser, MD, Hans Proquitté, MD, Gisela Stoltenburg-Didinger, MD, John P. Hartung, MD and Christian Bamberg, MD

Departments of Obstetrics and Gynecology (K.D.K., K.E., T.E., C.B.), Neonatology (H.P.), and Neuropathology (G.S.-D.), Charité University Hospital-Campus Mitte, Berlin, Germany; and Center for Prenatal Diagnosis, Berlin, Germany (J.P.H.).

Address correspondence to Karim D Kalache, MD, Developmental Origins of Health and Disease Division (815), University of Southampton, Princess Anne Hospital, Coxford Road, Southampton SO16 5YA, England. E-mail: kalache{at}soton.ac.uk

Objectives. The purpose of this study was to evaluate the potential of 3-dimensional ultrasonographic planar and nonplanar reslicing techniques. Methods. Fetuses with severe brain anomalies diagnosed by means of 2-dimensional ultrasonography were prospectively included in the study. Good-quality 3-dimensional volumes of the fetal head were obtained in each case. Subsequently, these volumes were reviewed with use of 3-dimensional extended imaging with Oblique View and DynamicMR (Medison Co, Ltd, Seoul, Korea). Results. Eight fetuses (mean gestational age, 23 weeks; range, 20–30 weeks) with the following central nervous system anomalies were examined: semilobar holoprosencephaly, absent cavum septum pellucidum, porencephaly in twin-to-twin transfusion syndrome, partial agenesis of the corpus callosum, Dandy-Walker variant, open-lip schizencephaly, aneurysm of the vein of Galen, and dilated cavum vergae. Conclusions. Planar and nonplanar reslicing of the volumes delivered informative images in any reconstructed plane. One important prerequisite, however, was the absence of acoustic shadowing during data acquisition.

Key Words: central nervous system • fetus • Oblique View • prenatal diagnosis • 3-dimensional ultrasonography

Abbreviations: MRI, magnetic resonance imaging • 3DUS, 3-dimensional ultrasonography • 2DUS, 2-dimensional ultrasonography

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Copyright © 2006 by the American Institute of Ultrasound in Medicine.