Invention Grant
US07856078B2 Method and X-ray CT system for generating computed tomography displays
有权
用于生成计算机断层显像的方法和X射线CT系统
- Patent Title: Method and X-ray CT system for generating computed tomography displays
- Patent Title (中): 用于生成计算机断层显像的方法和X射线CT系统
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Application No.: US12153416Application Date: 2008-05-19
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Publication No.: US07856078B2Publication Date: 2010-12-21
- Inventor: Herbert Bruder , Rainer Raupach , Bernhard Schmidt
- Applicant: Herbert Bruder , Rainer Raupach , Bernhard Schmidt
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102007024409 20070525
- Main IPC: A61B6/00
- IPC: A61B6/00

Abstract:
A method is disclosed for generating computed tomography displays, in which with the aid of at least one X-ray source, an examination object is scanned in a rotationally circulating fashion with a measured dose rate dependent on the circulation angle, projection data are collected from a multiplicity of viewing angles, and at least similarly redundant projection data from angularly identical or angularly complementary projection angles with a different measured dose are interpolated with distance weighted relative to a projection value and are used for reconstruction. According to at least one embodiment of the invention, during the distance weighted interpolation of the at least similarly redundant projection data an additional noise optimizing weighting is carried out as a function of the noise present per projection value. Furthermore, an X-ray computed tomography system is disclosed for generating tomographic displays of an examination object with the aid of an arithmetic logic unit, including computer program code for evaluating detector data and carrying out a reconstruction, the arithmetic logic unit including program code that during operation executes at least one embodiment of the method.
Public/Granted literature
- US20080292171A1 Method and X-ray CT system for generating computed tomography displays Public/Granted day:2008-11-27
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