公开(公告)号：AU2003209950A1

公开(公告)日：2003-10-13

申请号：AU2003209950

申请日：2003-03-24

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： KOHLER THOMAS ,  SCHMIDT THOMAS ,  KATSCHER ULRICH

IPC: G01T1/161 ,  A61B5/055 ,  A61B6/03 ,  G06T3/00 ,  G06T11/00

Abstract: A method for selective imaging of body structures includes acquiring first image data set by a first tomography method, acquiring a second image data set by a second tomography method which has a resolution which is higher than that of the first method, the image data of the first and the second image data set coinciding at least partly in space, reconstructing an image from the first image data set, and selecting the image data to be reconstructed from the first image data set using the second image data set. In order to achieve a higher imaging quality while using a low-resolution tomography method, image reconstruction of the image data selected from the first image data set at least one image region to be imaged is selected from the second image data set, and subsequently the image reconstruction is calculated from the image data of the first image data set which are situated in the selected image region.

公开(公告)号：AU2003202731A1

公开(公告)日：2003-09-02

申请号：AU2003202731

申请日：2003-01-30

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： GRASS MICHAEL ,  KOHLER THOMAS

IPC: A61B6/03

Abstract: The invention relates to a computed tomography method in which an examination zone is irradiated from two mutually offset, preferably circular trajectories. In an intermediate region the absorption distribution is reconstructed by means of measuring values from both trajectories, the weight with which the measuring values are used being larger as the distance between the voxel to be reconstructed and the relevant trajectory is smaller.