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Ultrasound Imaging in Multifetal Pregnancies: Its

Ultrasound Imaging in Multifetal Pregnancies: Its

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<strong>Ultrasound</strong> techniques for determ<strong>in</strong><strong>in</strong>g<br />

chorionicity & amnionicity<br />

Umbilical cord entanglement<br />

Fetal sex<br />

Separate placental discs<br />

No. of layers <strong>in</strong> membrane<br />

Membrane thickness<br />

Lambda or Tw<strong>in</strong> Peaks or T-sign<br />

No. of yolk sacs<br />

No. of gestational sacs<br />

amnionicity<br />

chorionicity<br />

First trimester Second Trimester Third Trimester<br />

J Rob<strong>in</strong>son & AZ Abuhamad Modern Medic<strong>in</strong>e 2002

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