Which imaging study is preferred for the diagnosis of rhinosinusitis (RS)?

Updated: Mar 01, 2018
  • Author: Itzhak Brook, MD, MSc; Chief Editor: Michael Stuart Bronze, MD  more...
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CT scanning is the preferred imaging method for rhinosinusitis. A screening sinus CT scan is adequate for diagnosis and less expensive than other methods but is necessary only in cases of treatment failure or chronic rhinosinusitis. A complete sinus CT scan with frontal and coronal planes is used if an alternative diagnosis (eg, tumors) must be excluded. CT scanning is characteristic in allergic fungal sinusitis and is one of the major criteria for diagnosis.

The 2005 AAAAI practice parameter states that the optimal technique for evaluating the ethmoid sinuses and for preoperative evaluation of the nose and paranasal sinuses, including assessment of the ostiomeatal complex areas, is CT. [2]

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