Self-controlled super-selective arterial spin labelling
Self-controlled super-selective arterial spin labelling
复制标题
自控超选择性动脉自旋标记
DOI：
10.1007/s00330-017-5066-7
复制
发表时间：
2018
影响因子：
5.9
通讯作者：
Helle M
中科院分区：
文献类型：
--
作者：
Lindner T;Austein F;Jansen O;Helle M
动脉自旋标记(ASL)是一种非对比剂增强的灌注成像方法，它通常基于采集两幅图像，必须减去这两幅图像才能获得灌注加权图像。对于某些流动区域测绘方法也是如此，这些方法需要为每条感兴趣的动脉采集两幅图像，从而延长扫描时间并产生大量冗余信息。本研究的目的是通过消除对对照条件的获取来加速使用ASL绘制血流区域图。方法使用超选择性ASL，只标记一条感兴趣的动脉，而对侧动脉处于与对照条件相似的状态。通过使用所有区域的标签图像的算术组合，可以在不需要获取额外控制条件的情况下获得流动区域的选择性图像。本研究提出了一种无需控制条件即可获得动脉选择性灌注加权图像的方法，称为“自控超选择性ASL”。结果所有受试者的定量灌注测量与常规的超选择性和非选择性灌注成像相似。结论超选择性动脉自旋标记可以在不获取对照图像的情况下进行。要点·提出了一种快速的流域图绘制方法。·超选择性动脉自旋标记是在没有控制条件的情况下进行的。·提出了一种计算单个流动区的新方法。·将所提出的方法与已有的方法进行了比较。·结果与使用传统技术的结果相似。
ObjectivesArterial spin labelling (ASL) is a method of non-contrast-enhanced perfusion imaging that is generally based on the acquisition of two images which must be subtracted in order to obtain perfusion-weighted images. This is also the case for some flow territory mapping approaches that require the acquisition of two images for each artery of interest, thereby prolonging scan time and yielding largely redundant information. The aim of this study is to accelerate flow territory mapping using ASL by eliminating the acquisition of a control condition.MethodsUsing super-selective ASL, only one artery of interest is tagged, while the contralateral arteries are in a state similar to the control condition. By using an arithmetic combination of the label images of all territories, selective images of flow territories can be obtained without the need to acquire an additional control condition. This approach for obtaining artery-selective perfusion-weighted images without acquiring a control condition is presented in this study and is referred to as "self-controlled super-selective ASL".ResultsQuantitative perfusion measurements were similar to conventional super-selective and non-selective perfusion imaging across all subjects.ConclusionSuper-selective arterial spin labelling can be performed without acquiring a control image.Key Points•An accelerated method of flow territory mapping is presented.•Super-selective arterial spin labelling is performed without a control condition.•A new approach for calculating individual flow territories is presented.•The presented technique is compared to established approaches.•The outcome is similar to that using conventional techniques.
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影响因子：
19.7
作者：
Jain, Varsha;Duda, Jeffrey;Wang, Danny J. J.
通讯作者：
Wang, Danny J. J.
影响因子：
3.3
作者：
Jensen-Kondering, Ulf;Lindner, Thomas;Helle, Michael
通讯作者：
Helle, Michael
基于共享旋转控制采集的加速区域动脉旋转标记：用于验证的观察者研究
影响因子：
2.8
作者：
H. Kamano;T. Yoshiura;A. Hiwatashi;K. Yamashita;Y. Takayama;E. Nagao;Koji Sagiyama;I. Zimine;H. Honda
通讯作者：
H. Honda
通过循环超选择性动脉自旋标记加速选定颅内动脉的可视化
DOI：
10.1007/s10334-016-0574-z
发表时间：
--
期刊：
Magnetic Resonance Materials in Physics, Biology and Medicine
影响因子：
--
作者：
Lindner T;Larsen N;Jansen O;Helle M
通讯作者：
Helle M
影响因子：
2.8
作者：
Lindner, T.;Helle, M.;Jansen, O.
通讯作者：
Jansen, O.