Abstract

OBJECTIVES: The aim of this observational descriptive study of morphological research is to assess the nervous structures within the embryonic and early fetal brains not previously documented in literature by HDlive and Silhouette® modes.STUDY DESIGN: A total of 26 subjects were examined in vivo, i.e. 15 embryos and 11 fetuses in the first trimester of pregnancy (7 to 13 gestational weeks (GW)), using a transvaginal ultrasound using a Voluson E10, BT 15 scanner (GE Healthcare, Zipf, Austria).RESULTS: The clear visualization of the brain structures by HDlive rendering mode was possible in all 26 selected optimal volumes. The most representative images for each week of gestation are shown. At 7 GW the ultrasound semiology of the brain is simple. The choroid plexuses can be seen in the 4th ventricle at 8 GW and in the lateral ventricles at 9 GW by HDlive mode. At 9 GW the brain is developed enough so that the walls of the cerebral hemispheres, the ventricular system and the rhombic lips could be visualized by HDlive mode. At 10 GW we depicted the ganglionic eminences within the brain by HDlive mode. At 11 GW the thalamus was noticed. At 12 GW and 13 GW, HDlive images of choroid plexus asymmetry and choroid plexuses cysts are shown.CONCLUSION: The HDlive combined with Silhouette® mode can provide almost natural images of the internal structures of the embryonic and early fetal brain. Small-sized nervous structures such as the

Highlights

  • A special attention was given in obstetrics to the US assessment of the embryonic and fetal brains [3,4,5]. 3D sonography allows obtaining important data on the spatial structure of the developing brain [4,5,6,7]

  • The HDlive combined with Silhouette® mode can provide almost natural images of the internal structures of the embryonic and early fetal brain

  • The clear visualization of the brain structures by HDlive rendering mode was possible in all 26 selected optimal volumes

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Summary

Introduction

A special attention was given in obstetrics to the US assessment of the embryonic and fetal brains [3,4,5]. 3D sonography allows obtaining important data on the spatial structure of the developing brain [4,5,6,7]. 3D sonography allows obtaining important data on the spatial structure of the developing brain [4,5,6,7]. The most accurate images of the embryonic brain were obtained. Address of Correspondence: Submitted for Publication: 05. Modern US techniques and digital technology enable 3D virtual reconstruction of the developing brain. Creating virtual “shadows” allows obtaining almost photographical images which are very alike to the natural aspect of anatomical structures [12]. By using these new facilities, understanding the brain development becomes easier and accessible to everyone. The modern US techniques serve in improving the imaging diagnosis of congenital anomalies, some of which being subtle, but important [13]

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