2nd-3rd tri A and P

What is in a complete anatomy scan

Spine

face

heart

fetal head

thorax

abdomen

Genitourinary system

extremities

placenta/ cord / AFI

Situs solitus

conformation of normal organ arrangement

Fetal heart on the same side as stomach

Feal lie

orientation in relation to mom

TRV, long, oblique

fetal presentation

fetal part closest to cx

cephalic, breech (footling)

how is BPD measured?

At the level of the thalami and CSP

outer-inner

how is HC measured

same is BPD

more reliable

how is AC measured

Level of stomach, spine, portal vein in TRV

no kidney, cord insertion

Thoracic circumference

asses for……..

pulmonary hyperplasia

skeletal dysplasia

oligohydramnios

diaphragmatic hernia

estimated fetal weight over 90th percentile

Macrosomia

maternal diabetes

estimated fetal weight under 10th percentile

IUGR

Lateral ventricles

less that 10 mm

contains choroid plexus

ventriculomegaly

over 10 mm

sign of spina bifida

cavum septi pellucidi

Box shaped fluid filled structure in the midline

where can you find the CSP

Between thalami and the frontal horns of the lat vents

Falx cerebri

Divides the cerebrum into RT and LT hemispheres

Posterior fossa

Cerebellum

cisterna magna

nuchal fold

cisterna manga measurement

2-10 mm

cerebellar diameter

should match GA in mm

banana sign

curved cerebellum pulled by Chiari ll malformation

Lemon sign

inward frontal bond scalloping

Dandy-walker malformation

enlarged cisterna magna

What signs are associated with open spina bifida

banana sign

lemon sign

Flat/ absent nose bone

T21

Micrognathia

small jaw

what’s associated with micrognathia

T18

Skeletal dysplasia

Hypotelorism

closely spaced eyes

what’s associated with hypotelorism

T13

Holoprosencephaly

Hypertelorism

widely spaced eyes

Cyclopia

fused eyes

scoliosis

abnormal curvature of the spine

sacral agenesis

absence of lower spine

spina bifida

splaying

meningocele

myelomeningocele

what is meningocele/ myelomeningocele

herniations

how is the apex of the heart angled

40 degrees to the left

normal FHR

120-160 bpm

tachycardia

over 160 bpm

bradycardia

under 110 bpm

which fetal heart chamber lays closest to the spine

LT atrium

LVOT

ascending aorta arising from LV

RVOT

Pulmonary artery arising from RV crossing over aorta leftward

3VV

From LT-RT

Pulmonary artery- Aorta- SVC

AV canal defect

absence of septum with large central opening

Tetralogy of fallot

overriding aorta

pulmonary stenosis

ventricular septal defect

Right ventricular hypertrophy

how is thoracic circumference measured

level of 4CH

signs of pulmonary hypoplasia

oligohydramnios

small thorax

echogenic kidneys

Bronchopulmonary sequestration

echogenic mass with arterial blood supply

Congenital Pulmonary Airway Malformation CPAM

multicystic lung masses