Application of an optical flow method to inspiratory and expiratory lung MDCT to assess regional air trapping: a feasibility study

AJR Am J Roentgenol. 2007 Mar;188(3):W276-80. doi: 10.2214/AJR.05.0911.

Abstract

Objective: We describe the application of an optical flow method to inspiratory and expiratory high-resolution volumetric lung MDCT for the assessment of regional air trapping.

Conclusion: Qualitative and quantitative assessment of regional air trapping is feasible using an optical flow method to align volumetric MDCT data sets.

Publication types

  • Evaluation Study

MeSH terms

  • Exhalation
  • Feasibility Studies
  • Humans
  • Imaging, Three-Dimensional / methods
  • Inhalation
  • Lung Volume Measurements / methods*
  • Optics and Photonics
  • Pulmonary Ventilation
  • Radiographic Image Interpretation, Computer-Assisted / methods*
  • Reproducibility of Results
  • Respiratory Dead Space*
  • Rheology / methods*
  • Sensitivity and Specificity
  • Subtraction Technique
  • Tomography, X-Ray Computed / methods*