Neonatal Head Flashcards
What transducer do you use?
5, 7, 10 MHz - higher frequency
WHat do you use as a window for scanning a neonatal head?
the sutures
fontanel
Under 1800g or 30 weeks GA what is the baby at risk for?
brain hemorrhage
Why do you ultrasound a neonate head?
premature
not responding appropriately when born
something found on the fetal exam
the head measures large
Where are the three different fontanelles?
anterior fontanel - most common
sagittal suture along the top of head
posterior fontanelle back of head
In the sagittal view, what is the anatomy we must be able to recognize?
from posterior head to anterior head:
trigone
cerebral aqueduct (aka: aqueduct of sylvius)
median aperture (aka: foramen of magendie)
fourth ventricle
temporal horn of lateral ventricle
third ventricle
anterior horn of lateral ventricle
interventricular foramen (aka: foramen of monro)
The foramen of monroe connects ______ ventricle to _____ ventricle
lateral
third
what does the aqueduct of sylvius connect
Third vent to fourth ventricle
What are the three regions of the brain?
forebrain (prosencephalon)
midbrain (mesencephalon)
hindbrain (rhombencephalon)
What is the forebrain?
aka: prosencephalon
mature
thalamus
epithalamus
hypothal
subthal
cerebral hemispheres
olfactory system
What are the scanning protocols for the neonatal head long?
midline to the left
midline to the right
notch toward baby face
what are the protocols for transverse (coronal) neonate head scanning?
anterior to posterior
notch to baby left side
but scan the way the baby was scanned before for comparison
What is the first picture coronal?
temporal lobes (orbital rim)
falx
what is the second pic coronal?
anterior horn lateral vents
corpus callosum
CSP
caudate nucleus
slide 12 for pic
What is the third pic of coronal imaging of head?
Corpus callosum
CSP
3rd vent
Sylvanian fissure
Foreamen of monroe - connects lat vent to 3rd vent
MCA
What is the 4th coronal picture?
lateral vent
choroid plexus
what is in the 5th coronal pic of the head?
body of ventricles
choroid
plexus
see slide 17 for picture
What is the 6th coronal picture of the head?
posterior brain
What is the first sagittal image?
mid line
corpus callosum
3rd vent
aquaduct of sylvius (connects 3rd and 4th vent)
4th vent
cisterna magnum
CSP
What is the second sagittal pic of the head? (do for rt and lt)
lateral ventricle
choroid plexus
anterior horn (thin)
what is the third sag pic of the head?
lat vent
posterior horn
slide 25 for pictures
should see thalamus and caudate nucleus, caudate thalamus groove
what is the fourth sag pic of the head?
lateral to ventricle
parietal side of the brain
What is the midbrain?
aka: mesencephalon
mature
what is the hindbrain?
aka: rhombencephalon
medulla
pons
cerebellum
