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

Loreen Ruhm, Nikolai Avdievich, Theresia Ziegs, Armin M. Nagel, Henk M. De Feyter, Robin A. de Graaf, Anke Henning

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: 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. Methods: 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. Results: 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. Conclusion: X-nuclei MRSI as DMI can highly benefit from ultrahigh field strength enabling higher temporal and spatial resolutions.

Original languageEnglish (US)
Article number118639
JournalNeuroImage
Volume244
DOIs
StatePublished - Dec 1 2021

Keywords

  • 9.4 Tesla
  • DMI
  • Deuterium
  • Human brain
  • Oral glucose administration
  • TCA cycle

ASJC Scopus subject areas

  • Neurology
  • Cognitive Neuroscience

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