title: Assessment of the Diagnostic Accuracy of Limited CT Scan of Paranasal Sinuses in the Identification of Sinusitis.
abstract: BACKGROUND
  Paranasal sinus CT has high sensitivity and specificity for sinusitis. However, this modality is costly and involves greater radiation exposure than plain radiographs.
  
  
  OBJECTIVE
  We tried to compare 10-cut limited CT scan and standard CT scan in the diagnosis of sinusitis.
  
  
  METHODS
  We conducted a cross sectional case series from August to December 2010 on 150 patients with non-randomized sampling method in academic hospitals related to medical school of Shahid Beheshti University of medical sciences. Using standard CT scan as the gold standard, the sensitivity and specificity of limited series were calculated for each sinus group.
  
  
  RESULTS
  In our study limited CT scan had a sensitivity of 92%, specificity of 94%, positive predictive value of 90% and negative predictive value of 95%.
  
  
  CONCLUSIONS
  The limited CT scan is useful for confirming the clinical diagnosis of sinusitis.
authors: Department of General Surgery, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Vahid
authors: V
authors: Noorian
authors: Arya
authors: A
authors: Motaghi
keywords: Diagnosis; Sinusitis; Spiral Computed Tomography
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