Carotid Artery Duplex Scan

Carotid Artery Duplex Scan

A bilateral color doppler analysis is used to look inside the carotid bulb as well as internal and external carotid arteries. 

This test is used to determine the velocity of blood flow to the brain and find the presence, amount, and location of arterial plaque. 

Buildup within the carotid arteries can reduce blood flow to the brain and may increase the risk of stroke.

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General Preparation Information

Each imaging exam has its own guidelines. Special instructions for your exam will be given at the time of scheduling. For certain procedures, we will contact you 24-48 hours prior to your exam with specific preparation instructions. The following are general guidelines that apply to all imaging exams:

  • Notify your physician and our staff if there is any chance that you may be pregnant and/or are currently breastfeeding.
  • Discuss any special needs – such as dietary and/or physical limitations – with us in advance.
  • Ask us about recovery time in advance, and let us know if you require a driver so that you can make the necessary arrangements with work and/or family.
  • Wear comfortable, metal-free clothing. Be prepared to change into a patient gown if necessary.
  • Arrive 20 minutes in advance to verify your registration information and provide any additional health information before your exam.
  • Bring prior x-rays or scans with you to the exam if you are instructed to do so.

Upper Abdominal & Retroperitoneal Ultrasound Preparation Information

  • There is no necessary preparation for this exam.


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