fetal chest/Normal fetal lungs/Thoracic circumference

 

Thoracic cirThoracic circumferencecumference

 

stomach is visible beneath and heart above the diaphragm.

Normal fetal lungs : homogeneous echotexture

    Sagittal and coronal views allow echogenicity

    of the lungs to be compared with of the liver or spleen.  

 

Thoracic circumference

Thoracic circumference

    Early in gestation, lung echogenicity is equal to or

    slightly less than that of the liver.

    As gestation progresses, lung echogenicity increases

    progressively until it is greater than of the liver

 

Thoracic circumference

Thoracic circumference