发明名称 |
X-RAY DOSE DISTRIBUTION CALCULATION FOR A COMPUTED TOMOGRAPHY EXAMINATION |
摘要 |
The invention relates to an apparatus (18) for calculating an x-ray dose distribution within an object for a computed tomography examination. A primary flux determination unit (15) determines firstly a primary flux distribution within the object, wherein then this determined primary flux distribution is used as an initial total flux distribution by a total flux determination unit (16) while applying a six-flux model algorithm. This allows the determination of the total flux distribution to start with a relatively good first approximation of the total flux distribution such that the six-flux model algorithm can determine the total flux distribution very fast. The determined total flux distribution is finally used by a dose distribution determination unit (17) for determining a total dose distribution. The apparatus allows therefore for a very fast determination of x-ray dose distributions for computed tomography examinations. |
申请公布号 |
EP2938261(B1) |
申请公布日期 |
2016.06.08 |
申请号 |
EP20140718596 |
申请日期 |
2014.04.21 |
申请人 |
KONINKLIJKE PHILIPS N.V.;PHILIPS DEUTSCHLAND GMBH |
发明人 |
PRINSEN, PETER;WIEGERT, JENS;LORENZ, CRISTIAN;RUPPERTSHOFEN, HEIKE |
分类号 |
A61B6/00;A61B6/03;G01T1/02;G06F19/00 |
主分类号 |
A61B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|