SPATIO-TEMPORAL IMAGE REGISTRATION FOR RESPIRATORY MOTION CORRECTION IN PET IMAGING

被引：4

作者：

Bai, Wenjia ^{[1
]}

Brady, Michael ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Wolfson Med Vis Lab, Oxford OX1 2JD, England

来源：

2009 IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING: FROM NANO TO MACRO, VOLS 1 AND 2 | 2009年

关键词：

PET; image registration; spatio-temporal registration; motion correction; respiratory motion;

D O I：

10.1109/ISBI.2009.5193075

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Positron emission tomography (PET) is a molecular imaging technique which is now widely established as a powerful tool for diagnosing a variety of cancers. However, PET images are substantially degraded by respiratory motion to the extent that this may adversely impact upon subsequent diagnosis and patient management. A spatio-temporal image registration algorithm is proposed to align the moving images and correct for motion. Compared to the conventional spatial registration, the proposed algorithm has the potential to yield more accurate motion. Experimental results show that motion correction using the spatio-temporal registration algorithm significantly improves the PET image quality.

引用

页码：426 / 429

页数：4

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