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学科主题: 基础医学
题名:
Rapid spin-lattice relaxation time mapping incorporating flip angle calibration in quantitative magnetic resonance imaging
作者: Zu, Zhongliang1; Liu, Qi1; Yu, Yanming1; Gao, Song2; Bao, Shanglian1
关键词: Spin-lattice relaxation time ; Flip angle inhomogeneity ; Flip angle calibration
刊名: PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
发表日期: 2008-09-10
DOI: 10.1016/j.pnsc.2008.02.010
卷: 18, 期:9, 页:1077-1081
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Materials Science, Multidisciplinary ; Multidisciplinary Sciences
研究领域[WOS]: Materials Science ; Science & Technology - Other Topics
关键词[WOS]: IN-VIVO ; NMR ; T-1
英文摘要:

Driven equilibrium single pulse observation of T(1) (DESPOT1) is a rapid spin-lattice relaxation constant (T(1)) mapping technique in magnetic resonance imaging (MRI). However, DESPOT1 is very sensitive to flip angle (FA) inhomogeneity, resulting in T(1) inaccuracy. Here, a five-point DESPOT1 method is proposed to reduce the sensitivity to FA inhomogeneity through FA measurement and calibration. Phantom and in vivo experiments are performed to validate the technique. As a result, a rapid and accurate T(1) mapping is acquired by using the proposed five-point DESPOT1 method. (C) 2008 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.

语种: 英语
所属项目编号: 10527003 ; 60672104 ; 2006CB705700-05
项目资助者: National Natural Science Foundation of China ; State Key Development Program for Basic Research of China
WOS记录号: WOS:000259873400005
Citation statistics:
内容类型: 期刊论文
版本: 出版稿
URI标识: http://ir.bjmu.edu.cn/handle/400002259/67401
Appears in Collections:基础医学院_生物物理学系_期刊论文

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作者单位: 1.Peking Univ, Key Lab Med Phys & Engn, Beijing 100871, Peoples R China
2.Peking Univ, Hlth Sci Ctr, Dept Med Phys, Beijing 100083, Peoples R China

Recommended Citation:
Zu, Zhongliang,Liu, Qi,Yu, Yanming,et al. Rapid spin-lattice relaxation time mapping incorporating flip angle calibration in quantitative magnetic resonance imaging[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2008,18(9):1077-1081.
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