An overview of the methodology background and the present status of in vivo O MR spectroscopy (MRS)/imaging (MRI) approach for imaging the cerebral metabolic rate of oxygen (CMRO 22) and studying the central roles of cerebral oxygen metabolism in brain function is presented. The brain is a highly aerobic organ; it consumes oxygen and glucose extensively in order to generate chemical energy in the form of the adenosine triphosphate (ATP) molecule. Oxygen and glucose as the major fuels for brain metabolism are continuously supplied by the circulating blood flow through the capillary bed. Unlike small animals, quantification of CMRO 2 in humans faces serious challenges. The human body size, lung capacity and respiration rate as well as blood circulation speed are drastically different from those in the small animal. It is expected that the exchange process between non-labeled and inhaled O-labeled oxygen gases in a human lung will be much slower compared to small animals such as a rat or mouse.
|Original language||English (US)|
|Number of pages||17|
|Journal||Progress in Nuclear Magnetic Resonance Spectroscopy|
|State||Published - Nov 2011|
Bibliographical noteFunding Information:
The work as reviewed in this article was supported partly by NIH Grants of NS41262, EB02632, NS39043, EB00329, EB00513, NS057560, NS070839, P41 RR08079 and P30NS057091; and the Keck Foundation.
- Cerebral metabolic rate of oxygen utilization
- High field
- In vivo O NMR
- Oxidative metabolism