公开(公告)号：US5068788A

公开(公告)日：1991-11-26

申请号：US277269

申请日：1988-11-29

申请人： David J. Goodenough ,  Charles Stockham

发明人： David J. Goodenough ,  Charles Stockham

IPC分类号： A61B6/03 ,  G01T1/161 ,  G06T1/00 ,  G06T5/40

CPC分类号： G06T7/0081 ,  G06T2207/20148 ,  G06T2207/30008

摘要： A method for measuring the CT numbers of an in vivo tissues includes the steps of calculating a histogram of a region including the tissue, locating a leading edge of a peak within the histogram, substracting CT numbers assumed to result from background and intermixing of tissues, fitting the background-substracted peak to a gaussian distribution, and calculating the mode of the resulting peak. Whe the CT numbers of two different tissues having know densities are measured according to the method of the invention, the CT numbers may be used to obtain a standard for analyzing tissues of unknow density. The method can be implemented by means of a CT scanner, a computer, and appropriate software.

摘要翻译： 用于测量体内组织的CT数量的方法包括以下步骤：计算包括组织的区域的直方图，定位直方图中的峰的前缘，减去假设由组织的背景和混合产生的CT数， 将背景减去的峰值拟合为高斯分布，并计算所得峰值的模式。 根据本发明的方法测量具有知识密度的两种不同组织的CT数，可以使用CT编号来获得用于分析未知密度组织的标准。 该方法可以通过CT扫描仪，计算机和适当的软件来实现。