title: Ground-glass opacity: high-resolution computed tomography and 64-multi-slice computed tomography findings comparison.
abstract: OBJECTIVE
  Comparative evaluation of ground-glass opacity using conventional high-resolution computed tomography technique and volumetric computed tomography by 64-row multi-slice scanner, verifying advantage of volumetric acquisition and post-processing technique allowed by 64-row CT scanner.
  
  
  METHODS
  Thirty-four patients, in which was assessed ground-glass opacity pattern by previous high-resolution computed tomography during a clinical-radiological follow-up for their lung disease, were studied by means of 64-row multi-slice computed tomography. Comparative evaluation of image quality was done by both CT modalities.
  
  
  RESULTS
  It was reported good inter-observer agreement (k value 0.78-0.90) in detection of ground-glass opacity with high-resolution computed tomography technique and volumetric Computed Tomography acquisition with moderate increasing of intra-observer agreement (k value 0.46) using volumetric computed tomography than high-resolution computed tomography.
  
  
  CONCLUSIONS
  In our experience, volumetric computed tomography with 64-row scanner shows good accuracy in detection of ground-glass opacity, providing a better spatial and temporal resolution and advanced post-processing technique than high-resolution computed tomography.
authors.affiliation: Department of Diagnostic Imaging, Molecular Imaging, Interventional Radiology and Radiation Therapy, University Polyclinic of Tor Vergata, Viale Oxford 81, 00133 Rome, Italy. carmeciccio@libero.it
authors.forename: Gianluigi
authors.initials: G
authors.lastname: Sergiacomi
authors.forename: Carmelo
authors.initials: C
authors.lastname: Cicciò
authors.forename: Luca
authors.initials: L
authors.lastname: Boi
authors.forename: Luca
authors.initials: L
authors.lastname: Velari
authors.forename: Sonia
authors.initials: S
authors.lastname: Crusco
authors.forename: Antonio
authors.initials: A
authors.lastname: Orlacchio
authors.forename: Giovanni
authors.initials: G
authors.lastname: Simonetti
mesh_terms: D000368:Aged; D004487:Edema / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D017563:Lung Diseases, Interstitial / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult