CT or Ultrasound Guided Biopsy and Drainage Procedures

Please note: This is an Interventional Radiology procedure. A specially trained doctor called an Interventional Radiologist will use a CT machine or an Ultrasound to guide to a specific target. Typically, the target is a collection of fluid to be drained or an area of concern within the body that must be biopsied for further study. Generally, prior scans, ultrasounds or x-rays of affected areas will need to be viewed by the doctor before scheduling of these procedures can be completed.


  • Depending upon the area of concern, you may be required to lie on your side, your back or your stomach.
  • A CT or Ultrasound is used to scan the area of concern.
  • The skin over the site is cleaned. A local anesthetic is applied to numb the skin.
  • The site is accessed with a straight needle. Biopsies are taken as necessary. In some cases a thin tube is exchanged with the needle to drain a collection of fluid.

Preparation & Considerations

  • For thyroid core biopsies being performed in the Ultrasound department at Henry Ford Wyandotte Hospital, please see more information here.
  • Please expect a phone call prior to your procedure informing you of specific requirements, obtaining a health history and a list of medications including blood thinners, and answering any questions that you may have.
  • Blood work is required prior to most procedures.
  • Please report to the Interventional Radiology Reception Desk upon arrival.
  • Please ensure that you have not had anything to eat or drink after midnight the night before your procedure.
  • Take your normal medications unless otherwise indicated by your physician.
  • If you are diabetic, talk to your physician about your insulin dose.
  • Shower or bathe the evening before or the morning of the procedure.
  • Please leave jewelry and other valuables at home; we are not responsible for items that you bring into the hospital.
  • Bring all medications in their labeled containers with you on the day of your procedure.
  • Plan on being at the hospital for at least 4 hours.
  • Plan on resting for 12 hours post procedure.
  • Do not drink alcohol 48 hours before or after your procedure.
  • You MUST have a responsible adult to drive you home.
  • Do not operate a vehicle, heavy machinery post- procedure for the remainder of that day.
  • Do not make any important decisions post-procedure for the remainder of that day.
  • As a reminder, children are not allowed into the imaging room and must be supervised by another guardian while your study is being completed.
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