A MULTIPLE PROJECTION METHOD FOR DIGITAL TOMOSYNTHESIS

被引：69

作者：

KOLITSI, Z ^{[1
]}

PANAYIOTAKIS, G ^{[1
]}

ANASTASSOPOULOS, V ^{[1
]}

SCODRAS, A ^{[1
]}

PALLIKARAKIS, N ^{[1
]}

机构：

[1] UNIV PATRAS,FAC SCI,DEPT PHYS,GR-26000 PATRAS,GREECE

来源：

MEDICAL PHYSICS | 1992年 / 19卷 / 04期

关键词：

DIGITAL TOMOSYNTHESIS; IMAGE RECONSTRUCTION; LIMITED ANGLE TOMOGRAPHY; ANGIOGRAPHY;

D O I：

10.1118/1.596822

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A new method of optimized efficiency for the retrospective reconstruction of tomograms is presented. The method has been developed for use with isocentric fluoroscopic units and is capable of performing digital tomosynthesis of anatomical planes of user selected orientation and distance from the isocenter. Optimization of efficiency has been achieved by segmenting the reconstruction process into discrete transformations that are specific to groups of pixels, rather than performing pixel by pixel operations. These involve a number of projections of the acquired image matrices as well as parallel translations and summing. Application of this method has resulted in a significant reduction of computing time. The proposed algorithm has been experimentally tested on a radiotherapy simulator unit with the use of a phantom and the obtained results are reported and discussed.

引用

页码：1045 / 1050

页数：6

共 8 条

[1] A NEW DIGITAL TOMOSYNTHESIS METHOD WITH LESS ARTIFACTS FOR ANGIOGRAPHY [J].