When is sinus CT scanning indicated for rhinosinusitis according to the University of Michigan Health System guidelines?

Updated: Apr 22, 2020
  • Author: Ted L Tewfik, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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The 2011 University of Michigan Health System guidelines recommend that a sinus computed tomography (CT) scan be performed while the patient is symptomatic. If symptoms of rhinosinusitis persist for more than 3 weeks despite antibiotics or recur more than three times per year. Because CT scans provide much better definition, plain sinus radiography series are not recommended. [16]

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