MR-Based Cardiac and Respiratory Motion-Compensation Techniques for PET-MR Imaging

被引：35

作者：

Munoz, Camila ^{[1
]}

Kolbitsch, Christoph ^{[1
]}

Reader, Andrew J. ^{[1
]}

Marsden, Paul ^{[1
]}

Schaeffter, Tobias ^{[1
]}

Prieto, Claudia ^{[1
]}

机构：

[1] Kings Coll London, St Thomas Hosp, Dept Biomed Engn, Div Imaging Sci & Biomed Engn, 4th Floor,Lambeth Wing,Westminster Bridge Rd, London SE1 7EH, England

来源：

PET CLINICS | 2016年 / 11卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Motion compensation; Respiratory motion; Cardiac motion; PET-MR imaging;

D O I：

10.1016/j.cpet.2015.09.004

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：

Cardiac and respiratory motion cause image quality degradation in PET imaging, affecting diagnostic accuracy of the images. Whole-body simultaneous PET-MR scanners allow for using motion information estimated from MR images to correct PET data and produce motion-compensated PET images. This article reviews methods that have been proposed to estimate motion from MR images and different techniques to include this information in PET reconstruction, in order to overcome the problem of cardiac and respiratory motion in PET-MR imaging. MR-based motion correction techniques significantly increase lesion detectability and contrast, and also improve accuracy of uptake values in PET images.

引用

页码：179 / 191

页数：13

共 53 条

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