Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Plasencia, W; Dagklis, T; Borenstein, M; Csapo, B; Nicolaides, KH.
Assessment of the corpus callosum at 20-24 weeks' gestation by three-dimensional ultrasound examination.
Ultrasound Obstet Gynecol. 2007; 30(2):169-172
Doi: 10.1002/uog.4035
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- Co-Autor*innen der Med Uni Graz
- Csapo Bence Daniel
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- Abstract:
- OBJECTIVES: To determine the range of positions of the fetal head in which a three-dimensional (3D) volume is acquired for subsequent successful imaging of the corpus callosum. METHODS: We used 3D volumes of the fetal head obtained from singleton pregnancies at 20 to 23 + 6 weeks' gestation. The volumes, which had been acquired with the head in different positions, were then reconstructed with the objective of obtaining a mid-sagittal section of the brain to demonstrate the presence of the corpus callosum. RESULTS: In the reconstructed mid-sagittal sections it was possible to demonstrate the corpus callosum in at least 90% of cases when the 3D volume acquisition plane was (1) mid-sagittal with the angle between the transducer and the direction of the fetal nose ranging from 0 degrees to 179 degrees and from 330 degrees to 359 degrees , (2) oblique around the crown-rump axis with an angle from the mid-sagittal plane of less than 30 degrees , (3) oblique around the anteroposterior axis from the axial plane at the level of the biparietal diameter to the mid-sagittal plane or (4) axial at the level of the biparietal diameter with an angle between the transducer and the midline echo of the brain of 60-119 degrees . In the mid-sagittal sections either the translucent corpus callosum or a comma-shaped echogenic structure was seen depending on whether the plane of volume acquisition was sagittal or axial. CONCLUSIONS: In 3D ultrasound examination the extent to which the corpus callosum can be demonstrated to be present is entirely dependent on the plane of volume acquisition.
- Find related publications in this database (using NLM MeSH Indexing)
- Corpus Callosum - embryology Corpus Callosum - ultrasonography
- Echoencephalography - methods
- Female -
- Humans -
- Image Processing, Computer-Assisted -
- Imaging, Three-Dimensional -
- Pregnancy -
- Pregnancy Trimester, Second -
- Prospective Studies -
- Ultrasonography, Prenatal - methods
- Find related publications in this database (Keywords)
- corpus callosum
- prenatal diagnosis
- three-dimensional ultrasound