Neonatal neurosonography is the most widely used neuroimaging procedure for preterm infants. It is safe, reliable, inexpensive, and can be performed at the bedside to assess the neurological status of infants with non-specific clinical symptoms. Common indications include assessing for brain hemorrhage, malformations, hydrocephalus, and infections. The standard imaging planes are coronal and sagittal views of the brain. Color Doppler is useful for imaging vessels like the anterior cerebral and middle cerebral arteries. Neurosonography can identify normal variants in preterm infants as well as pathologies like germinal matrix hemorrhage, hydrocephalus, holoprosencephaly, and ischemic injuries.
Magnetic Resonance Angiography and VenographyAnjan Dangal
Introduction to MR Angiography and Venography Procedure of Brain . Includes Indication, MRI protocol, planning and anatomy as well as brief intoduction to physics behind MRA and MRV principle.
Magnetic Resonance Angiography and VenographyAnjan Dangal
Introduction to MR Angiography and Venography Procedure of Brain . Includes Indication, MRI protocol, planning and anatomy as well as brief intoduction to physics behind MRA and MRV principle.
A detailed description of ct coronary angiography and calcium scoring with various aspects regarding the preparation, procedure, limitations and a short review regarding post CABG imaging.
By dr Rabab Hashem, MRCPCH, pediatrician at El Nasr hospital Port said.
Cranial sonography is the most widely used neuroimaging procedure in premature infants. US helps in assessing the neurologic status of the child, since clinical examination and symptoms are often nonspecific. It gives information about immediate and long term prognosis.
Hydrocephalous is a serious disease of the central nervous system which has both congenital and aquired subtypes. the congenital variety affects the children and is a considerable burden especially is the developing countries. I tleads to long term morbidity and high rates of mortality
A detailed description of ct coronary angiography and calcium scoring with various aspects regarding the preparation, procedure, limitations and a short review regarding post CABG imaging.
By dr Rabab Hashem, MRCPCH, pediatrician at El Nasr hospital Port said.
Cranial sonography is the most widely used neuroimaging procedure in premature infants. US helps in assessing the neurologic status of the child, since clinical examination and symptoms are often nonspecific. It gives information about immediate and long term prognosis.
Hydrocephalous is a serious disease of the central nervous system which has both congenital and aquired subtypes. the congenital variety affects the children and is a considerable burden especially is the developing countries. I tleads to long term morbidity and high rates of mortality
it is painful condition for boys , coming in emergency, ultrasound is basic imaging .it is to see testes and accordingly guide the surgeon whether testes could be saved
FETAL CENTRAL NERVOUS SYSTEM ANAOMALIES PRESENTATIONkumarramalakshmi
various fetal cns anamolies described with ante nantal and postnatal imaging features of ultrasound, barium study CT and MRI in each entity with representative iamges
evaluation of fetal anatomy in 1st trimester.pptxdypradio
EVALUATION OF FETAL ANATOMY IN FIRST TRIMESTER .
FETAL DEVELOPMENT IN FIRST YAER.
NORMAL ULTRASOUND FINDINGS IN THE FIRST TRIMESTER.Evaluation of fetal anatomy, including a detailed fetal cardiac examination, is possible in the late first trimester.
Many anatomic abnormalities can be detected in the first trimester, giving families time to make important decisions regarding pregnancy management and the opportunity for early termination of pregnancy to reduce maternal morbidity risks.Week 6: By the 6th week, the limb buds begin to differentiate into upper and lower limbs with large hand plates, which develop primordial digits. The lower extremities lag behind the upper limbs by approximately 4 to 5 days. The primordial ear develops and the eyes become obvious as the retina becomes pigmented. The fetal liver occupies the majority of the abdominal cavity at the 6th week. As the rapid growth of the intestines exceeds the growth of the abdominal cavity the physiologic herniation of the intestines into the umbilical cord occurs. Spontaneous twitching movements and reflex responses to touch begin to take place.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
2. • Most widely used neuro imaging procedure in pre-terms
• Helps in assessing the neurological status of the child ,since clinical
examination and symptoms are non-specific
• It is safe ,reliable ,inexpensive, suitable for screening ,provides easy imaging
and can be done bedside
3. INDICATIONS :
• Asphyxia and birth trauma, prematurity (screening, i.e.
third and seventh day).
• Macro- or hydrocephalus and (fetally) suspected
cerebral malformations.
• Suspicion of brain haemorrhage.
• Clinical neurologic symptoms.
• Disease potentially associated with cerebral
manifestations (e.g. septicemia with brain abscess,
tuberous sclerosis and other syndromic disease),
meningeal empyema, meningoencephalitis, etc.
• Some centers perform screening neonatal brain US.
• US may play a role in suspected inflicted/non-
accidental (NAI).
4. Requirements
• Generally high frequency phased
array transducer (5-8MHZ) with a
small foot print probe
• For standard examination 7.5-8
MHZ
• Tiny infant /superficial structures:
additional higher frequency (10
MHZ)
• Large infant /thicker hair/deep
structures: low frequency (5MHZ)
9. COLOUR DOPPLER IMAGING
• Mostly useful in demonstrating circle of Willis and region of vein of
Galen
• Easily accessible vessels
• ACA
• MCA
10. Doppler imaging
• Imaging of circle of Willis and region of vein of Galen is essential
• Transfontanellar
• Anterior cerebral artery (ACA) and its branches (particularly the pericallosal) and basilar
artery (BA)—best seen in sagittal sections
• Circle of Willis with its major feeding arteries and draining veins—best seen in coronal
section
• Internal carotid artery (ICA)—in parasagittal or coronal section
11. Transtemporal Dopplersonography
• Most vessels of circle of Willis are visible, particularly:
• Middle cerebral artery (MCA), proximal part of ACA (A1-segment).
• Proximal part of posterior cerebral artery (PCA), posterior and anterior
communicating arteries.
• Depiction of (proximal) ICA, distal ACA and BA difficult or impossible.
• This view used for transcranial flow evaluation
14. Choroid plexus
variant
• Generally does not extend past the
caudo-thalamic groove in the frontal
horns or past the ventricular atria in
occipital horns
• Lobular or bulbous variants – occur
frequently in the glomus with in
ventricular atria and lateral ventricles
16. Pseudo cysts
• These are also called coarctation of
the lateral ventricle.
They are often bilaterally and have no
neurological sequelae
17. Germinolytic cysts
• Are located at the caudothalamic groove.
They are tear shaped.
There are no signs of intracerebral hemorrhage and these children have no
neurological sequelae.
The etiology is not known.
18. Persistent fetal
fluid filled spaces
• Common finding in healthy neonates include :
cavum septi pellucidi,
cavum vergae,
Cavum veli interpositi
The more premature the baby, the more frequently these
cavities are present.
A less frequently seen variant is the cavum of the velum
interpositum.
This presents as a cyst-like structure in the region of the tectum
19. Periventricular
Echogenicities
• Flaring is the term used
• Physiologically reduced differentiation
between grey and white matter due to
immaturity; central non myelinated white
matter can be relatively echogenic,
particularly in periventricular areas.
• During this first week it is not sure if this is a
normal variant or a sign of PVL grade 1.
20. Ventricular
Asymmetry
• Normal ventricles measure
less than 10mm in transverse
diameter with 60 %of full
term and 30%of premature
infants having ventricles
smaller than 2-3mm
• Asymmetry of ventricles has
been observed In 20-40 %
of infants
21. Cisterna
magna
• Size - quite variable
• Typically less than 8mm
• >8mm- MEGA CISTERNA MAGNA
(1%)
• Normal variant should be
distinguished from arachnoid cyst and
dandy walker malformation
22. Mineralizing
vasculopathy
• Seen in the thalamostriatal and
lenticulostriatal arteries and is
caused by calcification of the
arterial wall.
A wide range of perinatal, acquired,
and nonspecific clinical conditions
may result in this sonographic
finding.
25. Corpus
Callosum
Malformations
• Dysgenesis of partial
• or total agenesis of corpus callosum.
• Associated malformations, for example: arachnoid cyst, Arnold–Chiari and various
syndromes (Trisomia 8, 13, etc.)
26. Hydrocephalus
• dilatation of internal and/or external CSF spaces.
• Task of US
• Depiction of dilatation/widened ventricles or external CSF spaces.
• Potentially recognise cause of dilatation.
• Find signs that indicate elevated intracranial pressure.
31. Holoprosencephaly
• Rare severe malformation based on lack of hemispheric
differentiation of early foetal brain
• Several forms:
• Alobar Holoprosencephaly
• Semi lobar Holoprosencephaly
• Lobar Holoprosencephaly
• De Morsier Syndrome: Septo-Optic Dysplasia –mild form of holo
prosencephaly
34. Lissencephaly
• Lack of gyration and sulcation
• Can be completely missing (agyria)
• or altered, showing many tiny gyri(polymicrogyria),
• few unusually flat gyri (pachygyria)
• or enlarged gyri(macrogyria).
35.
36. Megalencephaly
• Regional disturbance of brain
development, can be generalized or
focal/unilateral (hemimegalencephaly)
and may be associated with metabolic
disturbances.
37. Schizencephaly
• Gap in brain parenchyma
connecting ventricle to extra-axial
CSF system.
• If filled with CSF—open lip
schizencephaly.
• No fluid separating the lips—
closed lip schizencephaly.
• DDx :Any kind of porencephalic
or cystic defect connecting with
ventricle, heterotopia.
38. Germinal matrix
haemorrhage
• One of the most common indications
of neurosonography in preterm
infants
• Routine screening – in all infants of
under 30 weeks gestation, once
between 7 and 14 days of age and
should be optimally repeated between
36 and 40 weeks postmenstrual age.
39.
40.
41. Peri ventricular leukomalacia
• also known as Hypoxic-Ischemia Encephalopathy (HIE) of the preterm.
• PVL occurs most commonly in premature infants born at less than 33
weeks gestation (38% PVL) and less than 1500 g birth weight (45% PVL).
• It is a white matter disease that affects the periventricular zones.
• Causes: ischemia, infection,vasculitis
42.
43.
44.
45. ACUTE
ISCHEMIA
• As the size of the ventricles varies
considerably, ventricular size is
unreliable as a parameter in assessing
the mass effect.
• The usual observation in the cases of
ischemia is a combination of diffuse
increase in the echogenicity of
ganglionic areas with associated
obliteration of cisterns and small
capacity of the ventricles
46. Inflammation
• US only shows indirect changes or complications
• Final diagnosis always needs other tests (lumbar puncture, blood
samples, MRI, etc.).
• Common causes for prenatal CNS infections are cytomegalovirus,
herpes, toxoplasma, HIV and rubella (TORCH).
47. Postnatal
US Findings
• Hydro-, micro- and macrocephalus.
• Intracerebral calcifications, band-like or
stippled—most commonly in area of
basal ganglia
• Non-calcifying vasculopathy as
remnant of vascular involvement
• Hemispheric calcification occurs, can
be large
• Porencephalic defects, multi-cystic
encephalopathy and atrophy.