.png){kind=icon}
返回
A Multislice Gradient Echo Pulse Sequence for CEST Imaging
.png){kind=icon}
OA
AI
DOI：10.1002/mrm.22193.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Chemical exchange-dependent saturation transfer and paramagnetic chemical exchange-dependent saturation transfer are agent-mediated contrast mechanisms that depend on saturating spins at the resonant frequency of the exchangeable protons on the agent, thereby indirectly saturating the bulk water. In general, longer saturating pulses produce stronger chemical and paramagnetic exchange-dependent saturation transfer effects, with returns diminishing for pulses longer than T(1). This could make imaging slow, so one approach to chemical exchange-dependent saturation transfer imaging has been to follow a long, frequency-selective saturation period by a fast imaging method. A new approach is to insert a short frequency-selective saturation pulse before each spatially selective observation pulse in a standard, two-dimensional, gradient-echo pulse sequence. Being much less than T(1) apart, the saturation pulses have a cumulative effect. Interleaved, multislice imaging is straightforward. Observation pulses directed at one slice did not produce observable, unintended chemical exchange-dependent saturation transfer effects in another slice. Pulse repetition time and signal-to noise ratio increase in the normal way as more slices are imaged simultaneously. Magn Reson Med 63:253-256, 2010. (C) 2009 Wiley-Liss, Inc.
Keyword:
CEST
PARACEST
quantitative imaging
multislice imaging
saturation transfer
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3
论文数:
1.2W
被引数:
3.1W
机构
引用论文
Relaxation-compensated fast multislice amide proton transfer (APT) imaging of acute ischemic stroke急性缺血性卒中的松弛补偿快速多层氨基质子转移 (APT) 成像OAAI
OAAI分享收藏分享收藏MR lymphangiography: Imaging strategies to optimize the imaging of lymph nodes with ferumoxtran-10.png)
RADIOGRAPHICS
RADIOGRAPHICSIF5.5
PREAI
分享收藏
查看更多内容