As a reminder, if there is a localized metabolic abnormality in the left amygdala, it should be considered that the initial space-occupying disease cannot be eliminated, such as a malignant tumor.
Magnetic resonance spectroscopy (MRS) is currently the only technology that can non-invasively observe the metabolism and biochemical changes of living tissue. It mainly studies the pathophysiological changes of oxidative phosphorylation in the human body. On the basis of MRI morphological diagnosis, the disease is further judged from the metabolic level.
NAA only exists in neurons and their processes and can be used as a marker to reflect surviving neurons; Cho reflects the total choline storage in the brain and is a component of cell membrane phospholipid metabolism, and It is the precursor of the neurotransmitter acetylcholine. Cr is a substance of energy metabolism, a reserve of high-energy phosphorylation and a buffer for ATP and ADP. The concentration of Cr in the brain is relatively constant, so Cr concentration is often used as an internal reference in clinical practice.
Extended information:
Notes:
1. External equipment: such as ordinary wheelchairs, gurneys, stretchers, crutches, etc. are absolutely prohibited from entering the warning area.
2. Personal items: Metal magnetic items such as mobile phones, keys, coins, watches, magnetic cards, glasses, dentures, hairpins, rings, earrings, etc. should be placed before inspection. No people are allowed in the warning area and scanned During the process, the patient's body (skin) should not directly touch the inner wall of the magnet and various wires to prevent the patient from being burned.
3. Clothing with metal should be removed before the examination: including belts, bras, and accessories. Do not use cosmetics with metal, such as lipstick, eye shadow, mascara, etc.
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