title: Accuracy of virtual bronchoscopy for grading tracheobronchial stenosis: correlation with pulmonary function test and fiberoptic bronchoscopy.
abstract: OBJECTIVE
  To compare the accuracy of virtual bronchoscopy (VB) with fiberoptic bronchoscopy (FOB) and pulmonary function testing (PFT) for the assessment of tracheal stenosis and bronchial anastomotic stenosis.
  
  
  METHODS
  Prospective case series.
  
  
  METHODS
  Pulmonary institute of major tertiary university-affiliated center.
  
  
  METHODS
  The study group included 10 lung transplant recipients and 13 patients with central airway stenosis.
  
  
  METHODS
  All patients underwent PFT, VB, and FOB. All cases were graded by each modality on a scale of 1 to 3, and the findings were compared between modalities.
  
  
  RESULTS
  Mean +/- SD stenosis score was 2.0 +/- 0.79 for PFT, 1.62 +/- 0.73 for FOB, and 1.82 +/- 0.77 for VB. A statistically significant correlation was found between VB and FOB scores (p < 0.0001, r = 0.76) and between VB scores and PFT (p = 0.03, r = 0.45). There was no correlation between PFT and FOB.
  
  
  CONCLUSIONS
  VB grading of tracheobronchial stenosis is well correlated with PFT. VB may be used to evaluate patients with known tracheobronchial stenosis after treatment and thereby reduce the frequency of repeated invasive FOB performed for that purpose. The correlation of VB with PFT may improve the reliability of this approach.
authors.affiliation: Pulmonary Institute and Department of Radiology, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Sackler Faculty of Medicine, Tel Aviv University, Israel davids3@clalit.org.il
authors.forename: David
authors.initials: D
authors.lastname: Shitrit
authors.forename: Postinikov
authors.initials: P
authors.lastname: Valdsislav
authors.forename: Ahuva
authors.initials: A
authors.lastname: Grubstein
authors.forename: Daniele
authors.initials: D
authors.lastname: Bendayan
authors.forename: Maya
authors.initials: M
authors.lastname: Cohen
authors.forename: Mordechai R
authors.initials: MR
authors.lastname: Kramer
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical; D001980:Bronchi / Q000473:pathology; D001999:Bronchoscopy; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects; D016040:Lung Transplantation; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012129:Respiratory Function Tests; D014135:Tracheal Stenosis / Q000175:diagnosis*; D014584:User-Computer Interface