Fetal-chest

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Ultrasound images of fetal chest:

 

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Contents of this page:

1) Pleural effusion in fetus

2) Normal fetal Anatomy- Fetal aorta

3) Normal fetal anatomy: Fetal IVC (Inferior Vena Cava)

4) Congenital diaphragmatic hernia- Left (CDH)

Pleural effusion in fetus:

 

Fluid collection in fetal pleural cavity:

ultrasound image of fetal chest            sagittal ultrasound image of fetal thorax

ultrasound image showing bilateral pleural effusion in fetus            ultrasound image showing scalp edema

 

This early third trimester pregnancy underwent routine sonography. Ultrasound images reveal large, bilateral pleural effusion in the fetus. Both the fetal lungs are virtually floating in the pleural fluid. There is also evidence of mild ascites and scalp edema in the fetus. Polyhydramnios is also present. These ultrasound findings suggest bilateral fetal pleural effusion with hydrops fetalis. Images courtesy of Dr. Prem Chand, Pakistan. These images were taken with a Toshiba Just Vision 200 ultrasound machine.

 

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Normal fetal Anatomy- Fetal aorta (aortic arch or arch of aorta and descending aorta):

fetal aortic arch    fetal aorta is seen in sagittal section

These ultrasound and color Doppler images show a sagittal section of the fetal thorax with the aortic arch and the descending thoracic aorta seen emerging from the LVOT (left ventricular outflow tract). Ultrasound images taken by Joe Antony, MD, using a Toshiba Nemio-XG system.

 

Normal fetal anatomy: Fetal IVC (Inferior Vena Cava):

fetal IVC in sagittal section     Color Doppler image of fetal IVC

These ultrasound and Color Doppler images show the normal fetal IVC (Inferior Vena Cava) in sagittal section, entering the fetal right atrium after passing upward through the posterior aspect of the liver. One of the hepatic veins is also seen as it enters the IVC.

Congenital diaphragmatic hernia- Left (CDH):

Transverse section fetal chest:

transverse section ultrasound image CDH   image showing heart and stomach in transverse section

sonography of CDH   color Doppler image of CDH

CORONAL section fetal chest:

coronal section of fetal chest- diaphragmatic hernia   coronal section- Left CDH

This was a 34 week old fetus with a remarkable congenital anomaly seen in the fetal chest. Transverse section ultrasound and color Doppler images show fetal stomach, left lobe of liver and fetal bowel in the left hemithorax. There is also evidence of midline shift of the mediastinal structures including heart to the extreme right of the fetal thorax. In addition, the fetal lungs appear markedly hypoplastic. (ST= stomach ; HRT= heart). The fetal left hemi- diaphragm is not visualized in these ultrasound images. These images are diagnostic of fetal CDH or left sided congenital diaphragmatic hernia. Left diaphagmatic hernia is far more common than hernia on right side. Early ultrasound imaging (2nd trimester) may fail to detect this fetal anomaly if the CDH is small or intermittent. This means that the herniated bowel and stomach may get replaced into their normal position at certain times and again enter the fetal chest at other times. This is a potentially lethal anomaly and may be associated with other fetal anomalies, the most common ones being cardiac defects. One of the diagnostic features of sonography of left CDH is the presence of stomach of the fetus in a transverse section of the fetal chest in the same view as a 4 chamber view of the heart.

References: http://www.fetalsono.com/teachfiles/CDH.lasso (free excellent article and images of CDH).

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  This page was last edited on: Saturday July 23, 2011 05:26 PM  

Copyright ©   2007- All rights reserved- www.ultrasound-images.com Dr. Joe Antony, MD, Cochin- 20, India.

Scan centre: ULTRASCAN CENTRE, 34, LIG, OPP. SPENCERS, JUDGES AVENUE, KALOOR, ERNAKULAM,

COCHIN (KOCHI)- 682018, KERALA.

Ph: (Off.) 91-484-2403058, (Residence) 91-484-2311416, (Cell) 91- 93886-23088

Contact: joe@ultrasound-images.com or drjoea (at) gmail.com