Ultrasound: First-Line Imaging in the Setting of Pregnancy
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When doing an initial imaging assessment
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of a pregnant patient, ultrasound
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is the first-line imaging modality.
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Ultrasound is the first-line
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imaging modality in pregnancy.
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It's a great tool for us to use for
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pregnant patients because it's readily
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available and it does not use ionizing
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radiation, as is the case with CT.
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As we saw in the previous cases,
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we can get really high-resolution
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images of the uterus and ovaries on
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transabdominal and transvaginal imaging.
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And so ultrasound is excellent for
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evaluation of pregnancies, particularly in
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the first trimester when we're assessing
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for embryonic and fetal viability and any
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complications which may occur, which happen
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more frequently in the first trimester.
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This is a 3D ultrasound of
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a first trimester pregnancy.
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We can see the embryo here
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with an early umbilical cord.
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This is the yolk sac.
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This is the uterine myometrium and chorion.
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And then this is the gestational sac,
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which is filled with amniotic fluid.
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And we also see a small amount of the amnion.
Erin Gomez, MD
Assistant Professor of Radiology
Johns Hopkins Hospital
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