This baby allowed a neurosonography window through the anterior fontanelle even at 1 year age.
A study of the infant's brain shows normal anatomy in great detail.
Neonatal brain sonographic anatomy:
The cerebral ventricles are fluid-filled spaces within the brain.
There are four ventricles in the brain, each connected by narrow passageways.
The lateral ventricles are the largest and are located in the cerebral hemispheres.
The third ventricle is located in the midline of the brain and communicates with the lateral ventricles.
The fourth ventricle is located at the base of the brainstem and is connected to the third ventricle by the cerebral aqueduct.
The cerebral ventricles produce and circulate cerebrospinal fluid, which helps protect and cushion the brain and spinal cord.
Abnormalities in the size, shape, or position of the cerebral ventricles can indicate a variety of neurological conditions.
The cerebral ventricles are visible on ultrasound as anechoic, fluid-filled spaces within the brain.
The lateral ventricles are located in the cerebral hemispheres and have a characteristic C-shaped appearance.
The third ventricle is visible in the midline of the brain and is often referred to as a "box-shaped" structure.
The fourth ventricle is visible at the base of the brainstem and appears as a triangular-shaped structure.
The basal ganglia and cerebellum are visible as distinct structures within the brain.
Gray matter appears as hypoechoic (dark) regions, while white matter appears as hyperechoic (bright) regions on ultrasound.
The corpus callosum is visible as a midline structure connecting the two cerebral hemispheres.
Sulci and gyri are visible as thin, linear structures and folds on the surface of the brain.
A normal neonatal brain sonographic appearance is smooth and symmetrical, indicating proper development and organization of brain structure.
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