Ultrasound
Modality: Ultrasound

- “ Crown-rump length (CRL) is the most accurate estimation of gestational age in early pregnancy, especially after 6 weeks. ”

Used in the following article:

  • Fetal pole - “ The fetal pole is the first direct imaging manifestation of the fetus and is seen as a thickening on the margin of the yolk sac during early pregn...”
  • Crown rump length - “ Crown rump length (CRL) is the length of the embryo or fetus from the top of its head to bottom of torso. It is the most accurate estimation of ge...”
  • Early pregnancy - “ Early pregnancy roughly spans the first ten weeks of the first trimester. Radiographic features Antenatal ultrasound  0-4.3 weeks: no ultrasoun...”

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