Application of an M-line-based backprojected filtration algorithm to triple-cone-beam helical CT

作者：Zhao, Yunsong^*; Zhu, Yining; Zhang, Peng

来源：Physics in Medicine and Biology, 2010, 55(23): 7317-7331.

DOI：10.1088/0031-9155/55/23/009

• IMAGE-RECONSTRUCTION

To increase the scanning speed of cone-beam CT, a scanning configuration with three pairs of x-ray sources and panel detectors was proposed. In this paper, we apply the M-line-based backprojected filtration algorithm to this scanning configuration and propose a fast implementation for this algorithm. Compared with existing implementations, the advantages of our implementation are as follows: (1) it can directly reconstruct horizontal slices (i.e. the slices perpendicular to the rotation axis), without 3D interpolation; (2) it does not need to calculate the backprojection intervals for any point; (3) it has a high degree of parallelism and is suitable for acceleration on graphic processing units or other parallel systems.

• 出版日期2010-12-7
• 单位首都师范大学