Deuterium metabolic imaging in the human brain at 9.4 Tesla with high spatial and temporal resolution.

Deuterium metabolic imaging in the human brain at 9.4 Tesla with high spatial and temporal resolution.
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DOI:
10.1016/j.neuroimage.2021.118639
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发表时间:
2021-12-01
期刊:
影响因子:
5.7
通讯作者:
Henning A
Henning A
中科院分区:
医学1区
文献类型:
--
作者:
Ruhm L;Avdievich N;Ziegs T;Nagel AM;De Feyter HM;de Graaf RA;Henning A

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介绍在B 0 = 9.4 T的氘磁场强度下,采用专用线圈设计和快速化学位移成像(CSI)序列采集的人类大脑的首次高空间分辨氘代谢成像(氘代谢成像)测量结果。时间分辨率为10 min的2 H代谢测量能够研究健康人类受试者的葡萄糖代谢。使用双调谐线圈进行研究,1H有10个TxRx通道,2 H有8个TxRx/2 Rx通道,Ernst角3D CSI序列的标称空间分辨率为2.97 ml,时间分辨率为10 min。由于TCA循环,[6,6 ′-2H2]-标记的葡萄糖的代谢可以在整个人脑的氘代水、葡萄糖和Glx的高分辨率代谢物图像中可见。X-核MRSI作为磁共振成像可以高度受益于磁共振场强度,从而实现更高的时间和空间分辨率。
To present first highly spatially resolved deuterium metabolic imaging (DMI) measurements of the human brain acquired with a dedicated coil design and a fast chemical shift imaging (CSI) sequence at an ultrahigh field strength of B0 = 9.4 T. 2H metabolic measurements with a temporal resolution of 10 min enabled the investigation of the glucose metabolism in healthy human subjects. The study was performed with a double-tuned coil with 10 TxRx channels for 1H and 8TxRx/2Rx channels for 2H and an Ernst angle 3D CSI sequence with a nominal spatial resolution of 2.97 ml and a temporal resolution of 10 min. The metabolism of [6,6′-2H2]-labeled glucose due to the TCA cycle could be made visible in high resolution metabolite images of deuterated water, glucose and Glx over the entire human brain. X-nuclei MRSI as DMI can highly benefit from ultrahigh field strength enabling higher temporal and spatial resolutions.
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