title: Accurate airway wall estimation using phase congruency.
abstract: Quantitative analysis of computed tomographic (CT) images of the lungs is becoming increasingly useful in the medical and surgical management of subjects with Chronic Obstructive Pulmonary Disease (COPD). Current methods for the assessment of airway wall work well in idealized models of the airway. We propose a new method for airway wall detection based on phase congruency. This method does not rely on either a specific model of the airway or the point spread function of the scanner. Our results show that our method gives a better localization of the airway wall than "full width at a half max" and is less sensitive to different reconstruction kernels and radiation doses.
authors.affiliation: Surgical Planning Lab, Brigham and Women's Hospital, Boston, MA, USA. rjosest@bwh.harvard.edu
authors.forename: Raúl San José
authors.initials: RS
authors.lastname: Estépar
authors.forename: George G
authors.initials: GG
authors.lastname: Washko
authors.forename: Edwin K
authors.initials: EK
authors.lastname: Silverman
authors.forename: John J
authors.initials: JJ
authors.lastname: Reilly
authors.forename: Ron
authors.initials: R
authors.lastname: Kikinis
authors.forename: Carl-Fredrik
authors.initials: CF
authors.lastname: Westin
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008168:Lung / Q000000981:diagnostic imaging*; D010363:Pattern Recognition, Automated / Q000379:methods*; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*