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Accurate Airway Wall Estimation using Phase Congruency

San Jose Estepar R.¹, Washko G.G..¹, Silverman E.K..¹, Reilly J.J..¹, Kikinis R.², Westin C-F.¹


Institution:	¹Laboratory of Mathematics in Imaging, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA. ²Surgical Planning Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
Publisher:	Med Image Comput Comput Assist Interv. MICCAI 2006
Publication Date:	Oct-2006
Volume Number:	9
Issue Number:	Pt 2
Pages:	125-34
Citation:	Int Conf Med Image Comput Comput Assist Interv. 2006;9(Pt 2):125-34.
PubMed ID:	17354764
Keywords:	Airway Wall Estimation, Phase Congruency
Appears in Collections:	SPL, LMI, NAC, SLICER
Sponsors:	R01 HL075478 R01 HL68926 P41 RR13218
Generated Citation:	San Jose Estepar R., Washko G.G.., Silverman E.K.., Reilly J.J.., Kikinis R., Westin C-F. Accurate Airway Wall Estimation using Phase Congruency. Int Conf Med Image Comput Comput Assist Interv. 2006;9(Pt 2):125-34. PMID: 17354764.
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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.

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