Measurements of cerebral perfusion and arterial hemodynamics during visual stimulation using Turbo-TILT
Measurements of cerebral perfusion and arterial hemodynamics during visual stimulation using Turbo-TILT
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DOI：
10.1002/mrm.10525
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发表时间：
2003-08-01
影响因子：
3.3
通讯作者：
Golay, X
中科院分区：
文献类型：
--
作者：
Hendrikse, J;Lu, HZ;Golay, X
在功能灌注成像中，脑血流量(CBF)的估计可以受益于一种能够分离动脉到达时间和后缘影响的方法。为了实现这一点，转移不敏感标记技术(TILT)与一系列连续的13次采集结合在一起，称为Turbo-Tilt。在标记后延迟时间(TI)13时获得的视觉激活图显示，在标记延迟时间较短时，动脉血管周围区域向脑实质的空间移动。体素的基线脑血流量较高，到达时间较短，在短时间(
Estimation of cerebral blood flow (CBF) in functional perfusion imaging could benefit from a method capable of separating effects of arterial arrival time and trailing edge. To accomplish this, the transfer insensitive labeling technique (TILT) was combined with a train of 13 consecutive acquisitions, called TURBO-TILT. Visual activation maps obtained at 13 postlabeling delay times (TI) showed a spatial shift from regions surrounding the arterial vasculature at short TI to brain parenchyma at longer delay times. High baseline CBF and short arrival times were found for the voxels with maximum activation at short TI (