The significance of ultrasound 3D examination in diagnosing foetal birth defects
Authors:
P. Polák; A. Skřivánek; S. Huspeninová
Authors place of work:
Prenatální diagnostika, genetická poradna, Olomouc
1; PREDIKO s. r. o., Zlín
1,3; G-centrum, Olomouc
2
Published in the journal:
Prakt Gyn 2007; 11(5): 212-215
Summary
Three-dimensional ultrasound (3D US) enlarges considerably possibilities of prenatal diagnosis of fetal birth defects. This method enables the multiplanar analysis of fetal structures from three orthogonal planes. 3D US is essential for valid assesment of some fetal organs – ultrasound minor-markers respectively – in first trimester of pregnancy – between 11 – 14th week of gestation. There are nuchal translucency (NT), observation and measurement of nasal bone (NB), assesment of frontomaxillar angle above all. The estimation of some dysmorphological parameters is more accurate in second trimester of pregnancy as well. Rendering mode is sovereign diagnostic tool for orofacial clefts, limb anomalies, atypies of external genitalia etc. On the other hand the contrast mode can better describe skeletal dysplasias and neural tube defects – spina bifida, hemivertebra i.e.
Three-dimensional ultrasound provides important complement in algorithm of prenatal detection of chromosomal aberrations and some of severe genetic syndromes.
Key words:
prenatal diagnosis – screening - three-dimensional ultrasound – birth defects
Zdroje
1. Hull AD, James G, Salerno C et al. Three-dimensional ultrasound and the assessment of the first trimester fetus. J Ultrasound Med 2001; 20(4): 287-293.
2. Jackson D, Laymon N. Relationship of three-dimensional volume decrease to two-dimensional linear shortening in pathologic fetal femur length. Ultrasound Obstet Gynecol 2005; 26: 337.
3. Lee W, Blanckaert K, Bronsteen RA et al. Fetal ilias angle measurements by three-dimensional ultrasonography. Ultrasound in Obstetrics and Gynecology 2001; 18(2): 150-154.
4. Dyson RL, Pretorius DH, Budorick NE et al. Three-dimensional ultrasound in the evaluation of fetal anomalies. Ultrasound Obstet Gynecol 2000; 16: 321-328.
5. Benacerraf B, Shipp T, Bromley B. 3D is an essential tool in gynecological imaging. Ultrasound Obstet Gynecol 2005; 26: 314.
Štítky
Paediatric gynaecology Gynaecology and obstetrics Reproduction medicineČlánok vyšiel v časopise
Practical Gynecology
2007 Číslo 5
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