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Brain Vesicles: Normal Appearance at Nine Weeks of Gestation

Dr Vladimir Lemaire, Dr Violetta Lozovyy
High Risk Pregnancy Doctors, Frisco, Texas, United States of America

Article Published: Oct 16, 2021

The following images demonstrate the normal appearance of the brain vesicles at 9 weeks of gestation.

At this point are easily identifiable: the telencephalon vesicles, the diencephalon, and the rhombencephalon.

Demonstration of early brain development using Volume Contrast Imaging (VCI) with 1-2 mm thickness. Note the development of the fourth ventricle at this gestational age. The choroid plexus of the fourth ventricle is also visible.
Image 5 Demonstration of early brain development using Volume Contrast Imaging (VCI) with 1-2 mm thickness. Note the development of the fourth ventricle at this gestational age. The choroid plexus of the fourth ventricle is also visible.

References:

Pooh RK. "Recent advances in 3D ultrasound, silhouette ultrasound, and sonoangiogram in fetal neurology." Donald School J Ultrasound Obstet Gynecol 2016;10(2):193-200.

Bault, JP, et al. "Echo-Anatomie de l'Embryon (7-10 sa)." Echo-Anatomie Normale du Foetus. Montpellier: Sauramps Medical; 2021. pgs 16-17.

Abuhamad A, et al. "The fetal central nervous system." First trimester ultrasound diagnosis of fetal abnormalities. Philadelphia: Wolters Kluwer; 2018. pgs 113-115.

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