新生儿颅脑超声

Periventricular White Matter
Parasagittal Midline including corpus callosum, cavum, 3rd and 4th vents, vermis, cisterna magna Caudothalamic groove Frontal horn of lat. Vent Body of lat. Vent including temporal and occipital horns Sylvian fissue Sulci/Gyri lateral
MCA
MCA
Region of
Circle of Willis
Sylvian Fissures
3rd Vent
Thalami
Cerebellum
Cerebellar Vermis
Tentorium
Choroid Plexus in Lat. Vents.
Interhemispheric Fissure (Falx)
Subdural Space
Subarachnoid Space
- Enlargement of frontal, temporal extracerebral CSF spaces, enlargement of the frontal horns, and macrocephaly
- Will show bridging cortical veins (to distinguish between subdural collections which are never benign)
Typically up to 9 months or as long as fontanelle is open Use anterior fontanelle mostly, also transmastoid and
posterior for better visualization of the posterior fossa and 4th ventricle Highest frequency transducer to allow sufficient penetration and resolution (curved or vector), linear images to define superficial structures
Transmastoid
View of cerebellum, 4th ventricle, foramen magnum
Cerebellar hemisphere closer to transducer will have best resolution, thus we image the cerebellum from both the right and left mastoid fontanelles
Corpus Collosum
3rd Vent.
Aqueduct of Sylvius
4th Vent.
Cerebellar Vermis
Cavum Septum Pellucidum
Cavum Vergae
Velum Interpositum
Cisterna Magna
Caudate Nucleus
新生儿颅脑超声影像
汪元芳 MD, ARDMS, ARVT
Neurosonography 1
Routinely for premature infants at 6 days and 4 weeks and as needed to rule out Intraventricular Hemorrhage and Periventricular Leukomalacia, as well as other abnormalities
Corpus Collosum CSP Cavum VergaБайду номын сангаас Velum Interpositum Ventricles Choroid Plexus Cerebellum Caudate Nucleus
Thalamus Sylvian Fissures Circle of Willis Cerebral Hemispheres Brain Covering Lobes of Cerebrum
Lateral Ventricle -Frontal Horn -Body -Occipital Horn -Temporal Horn
-Choroid Plexus -Lateral Ventricles -Foramina of Monro -3rd Ventricle -Aqueduct of Sylvius -4th Ventricle -Foramina of Magendie and Luschka -Foramen Magnum
Thalamus
Caudothalamic Groove
Frontal Horn of Lat. Vent
Temperal Horn of Lat.
Vent
Periventricular White Matter
Sylvian Fissure
Sulcation
Term
Premature Smooth Brain
Coronal Images (frontal occipital) Frontal at level of orbits Orbital Bones Frontal horns Anterior to Foramen of Monro MCA Region (Measure Lat. Vents.) Foramen of Monro Posterior aspect of 3rd ventricle through thalami Cerebellum and Lateral Vents. Bodies Tentorium Laertal Vents. Including Choroid Plexus Cortex of occipital lobes and posterior Interhemispheric Fissure (periventricular white matter)