• See Also
  1. Sinusitis
  2. Sinus CT
  • Indication (Sinus CT preferred)
  1. Evaluation of Suspected Chronic Sinusitis
  2. Evaluation of Acute Sinusitis:
    1. Persistent symptoms despite adequate treatment
    2. High risk patients
      1. Diabetes Mellitus
      2. Immunosuppressive Drugs
    3. Suspected involvement in multiple Paranasal Sinuses
  • Contraindications (Relative)
  1. Ethmoid or Sphenoid Sinusitis
  2. Age under 3 years
    1. Undeveloped sinuses
    2. High False Positive opacification rate
  • Views
  1. Maxillary: Waters' View (Occipitomental XRay)
    1. This alone is usually sufficient
  2. Frontal: Caldwell-Luc
  • Findings suggestive of Sinusitis
  1. Opacification (Only 36-66% sensitive)
  2. Air fluid levels
  3. Mucosa more than 8 mm thick (non-specific)
  • Efficacy in Acute Sinusitis
  1. Test Sensitivity: 76%
  2. Test Specificity: 79%
  • References
  1. Okuyemi (2000) Am Fam Physician 66(10):1882-6 [PubMed]