Blind detection of vascular sources and territories using random vessel encoded arterial spin labeling.
Blind detection of vascular sources and territories using random vessel encoded arterial spin labeling.
复制标题
使用随机血管编码的动脉自旋标记对血管来源和区域进行盲检测。
DOI：
10.1007/s10334-011-0302-7
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Guo,Jia
中科院分区：
文献类型：
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作者：
Wong,EricC;Guo,Jia
目的应用血管编码动脉自旋标记（VEASL）技术在不知道供血动脉位置的情况下检测供血动脉，并绘制其血管分布图。VEASL标记方法被修改为使用具有随机方向和间距的60对不同的编码步骤。开发了一个信号模型，用于计算标记平面中任何位置的血管产生的理论ASL信号。对于每个体素，通过寻找理论信号，最密切相关的data.ResultsThe主要颅内动脉，包括颈动脉，椎动脉，基底动脉和大脑动脉以上的环威利斯的位置估计的供血血管的位置被确定和本地化的ASL数据在所有科目。此外，颈外动脉分支检测在所有subjects.ConclusionsRandomly编码VEASL提供的数据，允许盲源血管检测。该方法简化了VEASL处方过程，并允许有效检测非典型或侧支循环。
ObjectThe goal of this work is to use vessel encoded arterial spin labeling (VEASL) methods to detect feeding arteries without prior knowledge of their positions, and map the vascular territory of each.Materials and methodsFive healthy subjects were scanned, each with four different tagging planes. The VEASL tagging method was modified to use 60 different pairs of encoding steps with random orientation and spacing. A signal model was developed to calculate the theoretical ASL signal resulting from a vessel in any position in the tagging plane. For each voxel, the location of the feeding vessel was estimated by finding the theoretical signal that correlates most closely with the data.ResultsThe main intracranial arteries, including carotid, vertebral, basilar, and cerebral arteries above the Circle of Willis were identified and localized from the ASL data in all subjects. In addition, external carotid branches were detected in all subjects.ConclusionsRandomly encoded VEASL provides data that allows for blind detection of source vessels. This method simplifies the VEASL prescription process and allows for efficient detection of atypical or collateral circulation.