Weighted FBP - a simple approximate 3D FBP algorithm for multislice spiral CT with good dose usage for arbitrary pitch

被引：133

作者：

Stierstorfer, K ^{[1
]}

Rauscher, A ^{[1
]}

Boese, J ^{[1
]}

Bruder, H ^{[1
]}

Schaller, S ^{[1
]}

Flohr, T ^{[1
]}

机构：

[1] Siemens Med Solut, D-91301 Forchheim, Germany

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2004年 / 49卷 / 11期

关键词：

D O I：

10.1088/0031-9155/49/11/007

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A new 3D reconstruction scheme, weighted filtered backprojection (WFBP) for multirow spiral CT based on an extension of the two-dimensional SMPR algorithm is described and results are presented. In contrast to other 3D algorithms available, the algorithm makes use of all available data for all pitch values. The algorithm is a FBP algorithm: linear convolution of the parallel data along the row direction followed by a 3D backprojection. Data usage for arbitrary pitch values is maintained through a weighting scheme which takes into account redundant data. If proper row weighting is applied, the image quality is superior to the image quality of the SMPR algorithm.

引用

页码：2209 / 2218

页数：10

共 16 条

[1]

Bruder H, 2000, IEEE T MED IMAGING, V19, P873, DOI 10.1109/42.887836

[2] PRACTICAL CONE-BEAM ALGORITHM [J].