Fine-scale motion detection using intrinsic list mode PET information

被引：21

作者：

Klein, GJ ^{[1
]}

Reutter, BW ^{[1
]}

Botvinick, EH ^{[1
]}

Budinger, TF ^{[1
]}

Huesman, RH ^{[1
]}

机构：

[1] Lawrence Berkeley Natl Lab, Berkeley, CA USA

来源：

IEEE WORKSHOP ON MATHEMATICAL METHODS IN BIOMEDICAL IMAGE ANALYSIS, PROCEEDINGS | 2001年

关键词：

D O I：

10.1109/MMBIA.2001.991701

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Motion during extended nuclear medicine scanning sequences can significantly degrade the quality of reconstructed images. Correction for this motion requires an accurate motion sensor. We describe a technique to detect motion in list mode positron emission tomography (PET) imagery that relies upon information from the list mode data stream itself. In studies where the tracer contrast to background contrast is high, the axial component of the center of mass (CM) for tomograph events can serve as an accurate indicator of motion. Because the method does not require reconstruction of images, it may be applied to motion detection at a very fine temporal scale. The technique has been applied to the detection of motion due to the respiratory cycle in cardiac PET imaging.

引用

页码：71 / 78

页数：8

共 13 条

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