公开(公告)号：US07050533B2

公开(公告)日：2006-05-23

申请号：US10964916

申请日：2004-10-15

申请人： Bjoern Heismann ,  Andreas Horst Mahnken

发明人： Bjoern Heismann ,  Andreas Horst Mahnken

IPC分类号： G01N23/87

CPC分类号： A61B6/508 ,  A61B6/032 ,  A61B6/482 ,  A61B6/50 ,  A61B6/505 ,  A61B6/583

摘要： A method and a device are proposed for determining the type of fluid in a fluid mass in an object. X-ray attenuation data is supplied from one or a plurality of X-ray recordings of an object area including the fluid mass in the object, which were acquired with at least two different X-ray spectra or detector weightings. The X-ray attenuation data is used to determine values for effective atomic number and density for the fluid mass and average these to obtain a mean value for effective atomic number and density for the fluid mass. Comparison data is also supplied, which indicates fluctuation ranges for combinations of effective atomic number and density for different types of fluid. The mean values for effective atomic number and density of the fluid mass are compared with the comparison data to determine the fluctuation range and thereby the type of fluid, into which the two mean values fall. The method and associated device can be used to determine the type of fluid in a fluid mass in an object in a reliable and unambiguous manner.

摘要翻译： 提出了一种用于确定物体中的流体质量中的流体类型的方法和装置。 X射线衰减数据从包含物体中的流体质量的物体区域的一个或多个X射线记录提供，该X射线记录用至少两个不同的X射线光谱或检测器加权获得。 X射线衰减数据用于确定流体质量的有效原子数和密度的值，并且平均这些值以获得流体质量的有效原子数和密度的平均值。 还提供比较数据，其指示用于不同类型的流体的有效原子数和密度的组合的波动范围。 将流体质量的有效原子序数和密度的平均值与比较数据进行比较，以确定波动范围，从而确定两个平均值下降的流体类型。 该方法和相关装置可用于以可靠和明确的方式确定物体中流体质量中的流体类型。