Vascular Carotid Artery Ultrasound

 

The carotid ultrasound is most frequently performed to detect narrowing, or stenosis, of the carotid artery, a condition that substantially increases the risk of stroke.

 

It may also be performed if a patient has high blood pressure or a carotid bruit (pronounced brU-E)—an abnormal sound in the neck that is heard with the stethoscope.

 

Other risk factors calling for a carotid ultrasound are:

 

• advanced age
  
  

• diabetes
  
  

• elevated blood cholesterol
  
  

• a family history of stroke or heart disease

 

A carotid ultrasound is also performed to:

 

• locate a hematoma, a collection of clotted blood that may slow and eventually stop blood flow
  
  

• detect dissection of the carotid artery, a split between layers of the artery wall that may lead to obstruction of blood flow or
  
  

• a weakening of the wall of the artery
  
  

• check the state of the carotid artery after surgery to restore normal blood flow
  
  

• verify the position of a metal stent placed to maintain carotid blood flow.

 

Doppler ultrasound images can help the physician to see and evaluate:

 

• blockages to blood flow (such as clots)
  
  

• narrowing of vessels (which may be caused by plaque)
  
  

• tumors and congenital malformation
  

 

Patient Preparation:

No preparation is required.

 

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