OB sonogram identification unit 1

width measurement of GS in trans

length and AP measurement of GS in long

gestational sac and yolk sac

right arrow

embryo

yolk sac measurement

crown rump length (embryo)

crown rump length (fetus)

heart rate using m-mode

nuchal translucency

midsagittal facial profile

blue arrow

stomach

blue arrow

heart

GS and double decidua sign

yolk sac and amnion

bottom arrow

yolk sac

top arrow

fetal pole/embryo

brain vesicles in 8 week embryo

early umbilical cord

umbilical cord and mid-gut herniation

choroid plexus

stomach

4 chamber heart

choroid plexis and atria measurement

white matter tracts

biparietal diameter (leading edge to leading edge)

cavum septum pellucidum

column of fornix

head circumference

which measurement is the one going horizontally over the image?

Occipitofrontal diameter

calculated from using both of these measurements?

cephalic index

red arrows

cisterna magna

blue arrow

cerebellum

yellow arrows

nuchal fold

corpus luteum cyst

corpus luteum cyst displaying ring of fire

hematosalpinx

white arrows

braxton hicks contraction

placental abruption

fibroid

bicornate uterus

T cervix

Y cervix

V cervix

U cervix

incompetent cervix

what are the plus shaped calipers measuring?

binocular distance

what are the x shaped calipers measuring?

interorbital distance

what is the very bottom line pointing at?

spine

what is the top line pointing at?

umbilical vein

what is the left line indicating?

stomach

what is being measured?

abdominal circumference

femur length

humerus length

forearm

leg and foot

clavicle