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Flashcards in US Cutoffs Deck (14)
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1

Megacisterna Magna?

>10mm

2

Nuchal Fold

>=6mm

3

Ventriculomegaly

>=10mm

4

UTD

UTDA1: 16-27w6d: 4mm-6.99mm >28w: 7 to 9.99mm
UTDA2: 16-27w6d: >=7mm >28w: >=10mm

5

Pericardial Effusion

>2mm

6

Skin Edema

>5mm

7

Placentomegaly

2nd trimester: >40mm
3rd trimester: >60mm

8

Physiologic Gut Herniation (timing and size)

<1cm, resolves by 11-12 weeks GA

9

Bowel Dilation

>7mm (at >14mm is associated with increased rates of atresia)

10

Femur Length : Foot Length Ratio

<1 is suggestive of Skeletal dysplasia

11

Femur length: Abdominal Circumference Ratio

<0.16 suggests lethality

12

Chest circumference: Abdominal Circumference Ratio

<0.8 suggests lethality

13

Marginal Cord Insertion

<2cm from placental margin

14

CRL size to start moving towards HC?

>84mm