Cerebral blood flow MRI in mice using the cardiac-spin-labeling technique.

Cerebral blood flow MRI in mice using the cardiac-spin-labeling technique.
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DOI:
10.1002/mrm.21721
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发表时间:
2008-09
影响因子:
3.3
通讯作者:
Duong, Timothy Q.
Duong, Timothy Q.
中科院分区:
医学3区
文献类型:
--
作者:
Muir, Eric R.;Shen, Qiang;Duong, Timothy Q.

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带有独立颈部标记线圈的连续动脉自旋标记 MRI 提供了一种高度灵敏的脑血流 (CBF) 成像方法。然而,在小鼠中,这是不可能的,因为颈部线圈与大脑的接近使大脑信号显着饱和。为了克服这一限制,引入了心脏旋转标记(CSL)技术,其中标记线圈放置在心脏位置。为了证明其实用性,CSL CBF 被应用于定量基础 CBF 和高碳酸血症引起的 CBF 变化的图像。这种方法提供了一种在小动物中高灵敏度对 CBF 进行成像的实用方法,与现有的小鼠 CBF 成像技术相比,可以扩大 CBF 在小鼠中的应用,因为许多脑疾病和转基因模型都广泛存在。
Continuous arterial spin labeling MRI with a separate neck labeling coil provides a highly sensitive method to image cerebral blood flow (CBF). In mice, however, this has not been possible because the proximity of the neck coil to the brain significantly saturates the brain signal. To overcome this limitation, the Cardiac Spin Labeling (CSL) technique is introduced in which the labeling coil is placed at the heart position. To demonstrate its utility, CSL CBF was applied to image quantitative basal CBF and hypercapnia-induced CBF changes. This approach provides a practical means to image CBF with high sensitivity in small animals, compares favorably to existing mouse CBF imaging techniques, and could broaden CBF applications in mice where many brain disease and transgenic models are widely available.
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