Image quality in computed tomography using redundant information in production data sets

    公开(公告)号:US10039512B2

    公开(公告)日:2018-08-07

    申请号:US15275773

    申请日:2016-09-26

    IPC分类号: A61B6/00 G01N23/046 A61B6/03

    摘要: A method is provided for detecting a movement of a body between acquisition times of at least two acquisition data sets, wherein, for virtual sectional planes of the body, a first intermediate function value of attenuation values of all the body elements lying in the sectional plane is determined based on a first acquisition data set, and a second intermediate function value of the attenuation values is determined based on a second acquisition data set. For each sectional plane, a difference value is determined from the intermediate function values. A total error value for the two acquisition data sets is calculated by combining the difference values of all the sectional planes. The virtual sectional planes have a common line of intersection, and for the particular acquisition time, the difference between pairs of the sectional lines is at least one pixel.

    Method and Device for Determining an Irradiation Plan for a Particle Irradiation System
    3.
    发明申请
    Method and Device for Determining an Irradiation Plan for a Particle Irradiation System 审中-公开
    确定粒子照射系统照射方案的方法和装置

    公开(公告)号:US20150100250A1

    公开(公告)日:2015-04-09

    申请号:US14401069

    申请日:2013-03-28

    IPC分类号: G01N23/00 G01T1/02

    摘要: The device relates to a method and a device (10) for determining an irradiation plan for a particle irradiation unit (20). In the method, a target volume (6) within a test object (14; 18) is irradiated with a particle beam (16) using the particle irradiation unit (20) according to the irradiation plan. The radiation plan is determined in order to apply the energy of the particle beam (16) according to a predetermined dose distribution in the target volume (6), the target volume (6) and the predetermined dose distribution being pre-set. When determining the irradiation plan, irradiation duration is also taken into account, the irradiation plan being determined such that the irradiation duration is as short as possible.

    摘要翻译: 该装置涉及一种用于确定粒子照射单元(20)的照射计划的方法和装置(10)。 在该方法中,根据照射计划,使用粒子照射单元(20)用粒子束(16)照射测试对象(14; 18)内的目标体积(6)。 确定辐射方案以便根据目标体积(6)中的预定剂量分布施加粒子束(16)的能量,目标体积(6)和预定剂量分布被预先设定。 当确定照射计划时,还考虑照射持续时间,确定照射计划使得照射持续时间尽可能短。