Deuterium Metabolic Imaging of the Healthy and Diseased Brain.

Deuterium Metabolic Imaging of the Healthy and Diseased Brain.
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DOI:
10.1016/j.neuroscience.2021.01.023
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发表时间:
2021-10-15
期刊:
影响因子:
3.3
通讯作者:
Dijkhuizen, Rick M.
Dijkhuizen, Rick M.
中科院分区:
医学3区
文献类型:
--
作者:
Straathof, Milou;Meerwaldt, Anu E.;De Feyter, Henk M.;de Graaf, Robin A.;Dijkhuizen, Rick M.

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脑代谢改变有助于脑血管和神经退行性疾病的病理生理,如中风和阿尔茨海默病。目前研究脑代谢的临床工具依赖于需要特定硬件和放射性示踪剂的正电子发射断层扫描(PET),或涉及技术复杂性的磁共振波谱(MRS)。在这篇综述中,我们强调氘代谢成像(DMI)作为一种新的脑代谢评估翻译技术,并从脑肿瘤和中风研究的例子。DMI是一种基于核磁共振的方法,可以检测氘化底物,如葡萄糖及其代谢产物,如乳酸盐、谷氨酸盐和谷氨酰胺。与氟脱氧葡萄糖(FDG)-PET等类似方法相比,它提供了下游代谢物的更多细节,并且可以在临床和临床前MR系统上实施和执行。我们预见,随着未来空间和时间分辨率的提高,DMI有望成为一种有价值的磁共振成像(MRI)方法,用于健康和患病大脑中葡萄糖摄取及其下游代谢物的无创测绘。
Altered brain metabolism contributes to pathophysiology in cerebrovascular and neurodegenerative diseases such as stroke and Alzheimer’s disease. Current clinical tools to study brain metabolism rely on positron emission tomography (PET) requiring specific hardware and radiotracers, or magnetic resonance spectroscopy (MRS) involving technical complexity. In this review we highlight deuterium metabolic imaging (DMI) as a novel translational technique for assessment of brain metabolism, with examples from brain tumor and stroke studies. DMI is an MRS-based method that enables detection of deuterated substrates, such as glucose, and their metabolic products, such as lactate, glutamate and glutamine. It provides additional detail of downstream metabolites compared to analogous approaches like fluorodeoxyglucose (FDG)-PET, and can be implemented and executed on clinical and preclinical MR systems. We foresee that DMI, with future improvements in spatial and temporal resolutions, holds promise to become a valuable MR imaging (MRI) method for non-invasive mapping of glucose uptake and its downstream metabolites in healthy and diseased brain.
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