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NEONATAL BRAIN Study Guide With Complete Detailed Answers.

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SONOGRAPHIC TECHNIQUE for Neonatal Brain - correct answer 1. most brain sonographic examinations are performed through the anterior fontanelle in both the coronal and the sagittal planes 2. the posterior fossa is evaluated through the posterior and mas...

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  • August 14, 2024
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NEONATAL BRAIN

SONOGRAPHIC TECHNIQUE for Neonatal Brain - correct answer 1. most brain
sonographic examinations are performed through the anterior fontanelle in both the coronal and the
sagittal planes

2. the posterior fossa is evaluated through the posterior and mastoid fontanelles

3. The foramen magnum approach may be useful when evaluating the upper spinal canal, as in patients
with a Chiari malformation.



Newborn skull - correct answer



lobes of the brain - correct answer



folds of the meningies - correct answer



falx cerebri in ultrasound - correct answer



tentorium cerebelli - correct answer



caudothalamic notch - correct answer



why need to evaluate posterior and mastoid fontanelle? - correct answer
extremely important in the evaluation of cerebellar hemorrhage or posterior fossa anomalies,



The anterior fontanelle remains open until - correct answer approximately 2
years of age but is suitable for scanning only until about 12 to 14 months.



Coronal Brain Scans: Normal Structures

MIDLINE STRUCTURES - correct answer Interhemispheric fissure Cingulate
sulcus

, Corpus callosum

Cavum septi pellucidi

Cavum vergae (when present) Third ventricle

Fourth ventricle Brainstem

Vermis of cerebellum



Coronal Brain Scans: Normal Structures

PARAMEDIAN STRUCTURES - correct answer Frontal lobe

Parietal lobe

Occipital lobe

Frontal horn of lateral ventricle Body of lateral ventricle Temporal horn of lateral ventricle Trigone of
lateral ventricle Choroid plexus

Glomus of choroid plexus Caudate nucleus

Internal capsule Thalamus

Lentiform nucleus Tentorium cerebelli Cerebellar hemisphere Sylvian fissure Cisterna magna



Coronal Brain Scans - anterior to posterior - correct answer A. The most
anterior image

- Visualization of the anterior cranial fossa is obtained, including the frontal lobes of the cerebral cortex
with the orbits deep to the floor of the skull base.

B. the *frontal horns* of the lateral ventricles, midline

C. Moving laterally from the midline,

D. Progressing farther posteriorly to the level above the midbrain

E. the cerebellum.

F. Most posterior



A. The most anterior image - correct answer - the frontal lobes

- the orbits



Coronal Brain Scans

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