ARDMS Flashcards by Lourdes Matos

Most accurate meas to detect IUGR asymmetric

HC/AC

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SUA assoc

Maternal alcohol, IUGR, trisomies,

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Spalding sign

Overlapping of fetal skull bone

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BPD landmarks

Thalamus, CSP

Outer to inner

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No gb seen, suspect

Cystic fibrosis

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Club foot

Talipes

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Bladder flap

Done in c section to separate bladder from LUS during procedure

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Anencephaly confirmed in utero

8 weeks

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C section scar concerns for placenta

Placenta accreta

C section + previa = 25% chance accreta

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Fibroids in cervix

Impede vag delivery

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Mid gut herniation seen

8-12 weeks

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In GS

< 6 mm

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Heart flicker

5.5 wks

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Umb vein

Goes to liver by pass liver by ductus venosus and dumps IVC
Hep vein to IVC to right atrium. Right ventricle.
Main Pulm artery. By pass lungs via ductus Arteriosus.
To aorta.

Blood in Right atrium mix with blood from SVC, crosses foramen ovale to left atrium. Then to left ventricle. To aorta.

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Ductus venosus

Becomes lig venosum and bypasses liver to IVC

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Structures make up ductus Arteriosus

Bypass lungs.

Connects pulmonary artery to descending aorta

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Rhombencephalon

8-11wks

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Incompetent cx

< 3 cm

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Amnion & Chorion fuse

14-15wks

May see up to 16 wks

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Fallopian tube

Middle 1/3 ampulla. Fertilization occurs. MC site for ectopic.

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Supine hypotensive syndrome

Turn patient LLD

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Indication sono hystogram

Polyp endo

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Hydrocephalus

Ventriculomegaly with macrocephaly

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Turners

45XO
Cystic hygroma
Coarctation of aorta
Webbed neck shield chest

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Beckwith Wiedemann

Large tongue/ macroglossia | Hemihypertrophy

Brachycephaly

> 85% CI | Rounded head

Dolichocephaly

Narrow flat head | < 70%

(BPD/OFD)*100 Normal 70-85%

Immune Hydrops

Rh- mom | + fetus

Non immune hydrops

CV MC cause

Poly Oli

Twin twin transfusion Donor: IUGR & oligo Recipient: CHF, hydrops, poly

Transposition

Parallel outflow tracts Aorta comes of Rt Vent Pulm artery comes off Lt Vent

VSD

MC ❤️ defect | Assoc with tri 21, 13, 18, AV canal

Ebstein's ️anomaly

Tricuspid valve displaced Inferiorly Atrialized right ventricle Assoc with Lithium

Aortic Arch

Candy cane appearance

TRAP sequence

Acardiac monster Pump twin : CHF Artery to artery communication

Twin peak sign

Di di

Conjoined twin egg splits

13 days

CRL

6 weeks

Previa

Covers cx Complete Partial Low lying

Accreta

Abnl attach Accreta: touches myo Increta: into myometrium Percreta: out though serosa Assoc with c section and previa

MC placental tumor

Chorioangioma On fetal side

Wharton's jelly

Covers umbilical cord

Ectopic HCG

Subnormal hCG

Best time amnio & CVS

CVS: 9-12 wks Amnio: 14 wks

L/s ratio

Lung maturity

Coronal nose lips

Asses cleft lip / palate

NB image

11-14 wks

11-14wks | < 3 mm

Meas < 5 mm | 15-20 wks

Best way to view diaph

Long axis | Hypo band

Renal anomalies

MCDK Potters: bilateral renal agenesis, pulmonary hypoplasia, facial anomalies, malformed extremities UPJ: uni, associate with contralateral MCDK or agenesis. MC hydro cause.

Renals start to function when

Nephron function 8 weeks | Fluid comes from fetus at 20 weeks

Renal artery pic coming off long aorta with color

Stomach seen

< 14 wks

Embryonic period

1st 10 weeks | Fetal period at 10 wks

LH peaks & cause

Ovulation

FSH

Stimulates follicular development

Estrogen

Inc estrogen stops FSH Estrogen inc 24-46 hours before ovulation to stop FSH LH is made, peaks, causes ovulation

Middle cerebral artery

In brain. Top part of circle of wilis

2.5 MOM MSAFP

Normal

CCAM

Cyst in lungs Type 3 echogenic Displaced heart

Septate uterus

Best image plane trvs

Uterus

3cmL child Nulliparous 6-8cm Multiparous 8-10cm Post meno 3.5-5.5cm

Endo

Menses < 3 mm. Thin Proliferative 3 line sign < 8 mm Secretory thickest 8-15mm Menopause < 5 mm With hormones < 8mm Menstruating 7-14mm

MC lethal skeletal Dysplasia

Thenatophoric

Achondrogenesis

2nd MC lethal

Achondroplasia

MC non lethal

Hand stuff

Clinodactyly: overlapping Syndactyly: fused Ectrodactyly: lobster claw

Endometrioma

Chocolate cyst ectopic endo tissue

Post meno bleeding

Cancer, endo hyperplasia, fibroid

Broad ligament

Double fold peritoneum | Ovary to uterus

PCOS

Stein Leventhal: hairy fat Numerous small cyst displaced string of pearls Infertility

Spina bifida

2nd MC NTD Inc AFP Myelomeningocele: most severe. Meningocele: more common Bulging sac seen better trvs Banana sign. Lemon sign. Ventriculomegaly.

Clenched fist

Trisomy 18