Estépar Raúl San José, Washko George G, Silverman Edwin K, Reilly John J, Kikinis Ron, Westin Carl-Fredrik
Surgical Planning Lab, Brigham and Women's Hospital, Boston, MA, USA.
Med Image Comput Comput Assist Interv. 2006;9(Pt 2):125-34. doi: 10.1007/11866763_16.
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.
肺部计算机断层扫描（CT）图像的定量分析在慢性阻塞性肺疾病（COPD）患者的医学和外科治疗中变得越来越有用。目前评估气道壁的方法在理想化的气道模型中效果良好。我们提出了一种基于相位一致性的气道壁检测新方法。该方法既不依赖于特定的气道模型，也不依赖于扫描仪的点扩散函数。我们的结果表明，与“半高全宽”方法相比，我们的方法能更好地定位气道壁，并且对不同的重建内核和辐射剂量不太敏感。
