Magnetic Resonance Spectroscopy in Central Nervous System Metabolism

Magnetic resonance spectroscopy (MRS) is a non-invasive modality that probes the chemical composition and dynamic metabolism of the central nervous system by detecting resonance frequencies of nuclei such as hydrogen (1H), carbon (13C) and deuterium (2H). Unlike anatomical MRI, which images structural features, MRS reveals concentrations of key metabolites—N-acetylaspartate, choline, creatine, glutamate, γ-aminobutyric acid and lactate—providing insight into neuronal integrity, neurotransmission and energy homeostasis. Advances in high-field magnets, multi-channel coils and spectral editing have improved signal-to-noise ratio and resolution, enabling spatial mapping of metabolite distributions (MRS imaging) across cortical and subcortical regions. By quantifying metabolic fluxes of glucose, glutamine and lactate, MRS bridges molecular neuroscience and clinical practice, supporting diagnosis and treatment monitoring in tumour biology, neurodegeneration, epilepsy and metabolic encephalopathies. Integration with complementary modalities such as PET and functional MRI offers a comprehensive view of both biochemical and haemodynamic processes, underscoring the global significance of MRS in translational research and personalised medicine.

Research from Nature Portfolio

Dynamic imaging of glucose and lactate metabolism by 13C-MRS without hyperpolarisation has demonstrated that post-processing with tensor decomposition can amplify signal-to-noise by an order of magnitude. This innovation allows chemical shift imaging of non-hyperpolarised 13C-labelled glucose in vivo with a temporal resolution of around 12 seconds, revealing spatial heterogeneity of glycolytic flux in brain tissue and tumour lesions. By mapping the Warburg effect without ionising radiation or dissolution dynamic nuclear polarisation, this approach paves the way for routine metabolic flux quantification in both research and clinical settings, informing diagnosis, prognosis and therapeutic response in central nervous system pathology.

Magnetic Resonance Spectroscopy in Central Nervous System Metabolism publication trend

The graph below shows the total number of articles in magnetic resonance spectroscopy in central nervous system metabolism across all publications each year (not limited to Nature Index journals).

Technical terms

Magnetic Resonance Spectroscopy (MRS): A technique for quantifying regional biochemistry in vivo by detecting resonance frequencies of atomic nuclei, providing information on metabolite concentrations.

Chemical Shift Imaging (CSI): A method that encodes both spatial and spectral information simultaneously to generate three-dimensional maps of metabolite distributions.

Hyperpolarisation: A process that increases nuclear spin polarisation by several orders of magnitude to boost MRS sensitivity, most commonly applied to 13C-labelled substrates.

Deuterium Metabolic Imaging (DMI): An approach using 2H-labelled compounds to track metabolic pathways with rapid signal acquisition, exploiting short T1 relaxation times of deuterons.

Metabolic Flux: The rate at which a labelled substrate is transformed into downstream metabolites, reflecting pathway activity and biochemical turnover.

References

1. Metabolic imaging with deuterium labeled substrates. Progress in Nuclear Magnetic Resonance Spectroscopy (2023).
2. Accelerated MR spectroscopic imaging—a review of current and emerging techniques. NMR in Biomedicine (2020).
3. Minimum Reporting Standards for in vivo Magnetic Resonance Spectroscopy (MRSinMRS): Experts' consensus recommendations. NMR in Biomedicine (2021).
4. Terminology and concepts for the characterization of in vivo MR spectroscopy methods and MR spectra: Background and experts' consensus recommendations. NMR in Biomedicine (2020).
5. Dynamic Imaging of Glucose and Lactate Metabolism by 13C-MRS without Hyperpolarization. Scientific Reports (2019).