Fetus


GA: 9w4d, CRL: 23 mm



  1. Decidua capsularis
  2. Head
  3. Arm
  4. Amniotic cavity
  5. Placenta
  6. Umbilical cord (placental insertion)
  7. Legs
cmp57-fig-5868

GA: 10w5d, CRL: 40 mm



  1. Amniotic cavity
  2. Leg
  3. Umbilical cord
  4. Placenta
  5. Maxilla
  6. Mandibula
cmp57-fig-5869

GA: 11w4d, head transverse



  1. Amniotic cavity
  2. Frontal bone
  3. Cerebral cortex
  4. Choroid plexus in lateral ventricle
  5. Temporal bone
  6. Parietal bone
  7. Occipital bone
cmp57-fig-5870

GA: 12w3d, neck, nuchal translucency, sagittal



  1. Occipital bone
  2. Aorta
  3. Mandibula
  4. Maxilla
  5. Nuchal translucency (“nuchal fold,” subcutaneous edema), NF 1.9 mm. (Normal for this GA is up to 2.4 mm)
  6. Reflection from skin
  7. Vertebral canal
  8. Vertebral bodies with ossification centers
  9. Ilium
cmp57-fig-5871

GA: 14w5d, head, sagittal



  1. Lung
  2. Liver
  3. Gut
  4. Kidney
  5. Mandibula
  6. Maxilla and palate
  7. Nasal bone
  8. Lateral ventricle
  9. Cerebral cortex
  10. Choroid plexus
  11. Occipital bone
  12. Sphenoid bone
  13. Atlas and axis
cmp57-fig-5872

GA: 14w5d, brain, transverse



  1. Choroid plexus in lateral ventricle
  2. Cerebral cortex
  3. Third ventricle
cmp57-fig-5873

GA: 14w6d, thorax, transverse



  1. Arm
  2. Heart
  3. Rib
  4. Ossification centers in vertebral arch
  5. Vertebral canal
  6. Ossification center in vertebral body
  7. Lungs
cmp57-fig-5874

GA: 15w0d, spine, frontal



  1. Coxae
  2. Ribs
  3. Ossification centers in vertebral arch (thoracic)
  4. Vertebral canal
cmp57-fig-5875

GA: 15w0d, spine, mid-sagittal



  1. Liver
  2. Gut
  3. Stomach
  4. Heart and lung
  5. Aorta
  6. Vertebral bodies
  7. Vertebral canal
cmp57-fig-5876

GA: 15w2d, four chamber view of heart



  1. Right ventricle
  2. Tricuspid valve
  3. Right atrium
  4. Oval foramen
  5. Left atrium
  6. Left ventricle
  7. Crux cordis
  8. Mitral valve
  9. Aorta
  10. Pulmonary veins
  11. Rib
cmp57-fig-5877

GA: 15w2d, aortic arch. Color-flow Doppler imaging



  1. Left subclavian artery
  2. Left common carotid artery
  3. Brachiocephalic trunk
  4. Aortic arch
  5. Vertebral column
  6. Descending aorta
cmp57-fig-5878

GA: 15w2d, upper abdomen, transverse



  1. Liver
  2. Umbilical vein
  3. Inferior caval vein
  4. Vertebral canal
  5. Spleen
  6. Stomach
  7. Rib
  8. Aorta
  9. Ossification center of vertebral body
  10. Ossification centers of vertebral arch
cmp57-fig-5879

GA: 15w2d, spine, frontal. The shift between 3 and 8 is due to rotation

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Dec 20, 2015 | Posted by in PEDIATRIC IMAGING | Comments Off on Fetus

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