Summers R M, Feng D H, Holland S M, Sneller M C, Shelhamer J H
Department of Diagnostic Radiology, Henry M. Jackson Foundation, Warren Grant Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA.
Radiology. 1996 Sep;200(3):857-62. doi: 10.1148/radiology.200.3.8756944.
Computed tomography (CT) data sets obtained in 14 patients were used in a segmentation method for virtual bronchoscopy (VB). The method constrained the distance of propagation of a region-growing algorithm. The resulting three-dimensional bronchial model was a faithful representation of the source CT data and could be manipulated in real time at frame rates of one to two frames per second. Preliminary data showed that 90% of bronchi (up to third order) measureable on multiplanar CT reformations were also measurable at VB. The bronchial diameters measured at VB were within 1 mm of those measured on multi-planar reconstructions of the CT data.
14名患者的计算机断层扫描（CT）数据集被用于一种虚拟支气管镜检查（VB）的分割方法。该方法限制了区域生长算法的传播距离。生成的三维支气管模型是源CT数据的忠实呈现，并且可以以每秒一到两帧的帧率进行实时操作。初步数据显示，在多平面CT重建上可测量的支气管（直至三级）中有90%在VB中也可测量。在VB中测量的支气管直径与在CT数据的多平面重建上测量的直径相差在1毫米以内。
