发明名称 |
EFFICIENT ITERATIVE FOUR-DIMENSIONAL CARDIAC CONE-BEAM CT RECONSTRUCTION |
摘要 |
The increasing cone angle of current high-end and future CT systems leads to a decrease in image quality if approximate cone-beam reconstruction methods are used. According to an exemplary embodiment of the present invention, an iterative four-dimensional cardiac CT reconstruction is provided, in which phase volumes are selected from the four-dimensional data set, each having the same spatial volume at different phase points. Corresponding voxels inside these phase volumes are then forward projected onto the same projection. After calculation of a different projection, these voxels are updated. This may provide for an efficient implementation of an iterative four-dimensional cardiac cone-beam CT reconstruction. |
申请公布号 |
WO2007031899(A2) |
申请公布日期 |
2007.03.22 |
申请号 |
WO2006IB53055 |
申请日期 |
2006.09.01 |
申请人 |
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH;KONINKLIJKE PHILIPS ELECTRONICS N. V.;GRASS, MICHAEL;ZIEGLER, ANDY;NIELSEN, TIM |
发明人 |
GRASS, MICHAEL;ZIEGLER, ANDY;NIELSEN, TIM |
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