The purpose of this clinical trial is to use the medical magnetic resonance imaging system MR 7700 to perform phosphorus (31P) and sodium (23Na) scanning imaging on the human body, evaluate the image quality of phosphorus (31P) and sodium (23Na) scanning, as well as the machine convenience, machine stability, and system safety of the entire system.

Inclusion Criteria:

• • 18 ≤ Age ≤ 75 years old;

  • Clear mind, able to cooperate, and capable of autonomous behavior;
  • Voluntarily agree to participate in this clinical trial and sign the informed consent form for the subjects

Exclusion Criteria:

• • Individuals with claustrophobia.

  • On the day of scanning, the subject's body temperature was above 39.5 ℃.
  • Plan to become pregnant, pregnant, and breastfeeding women within 6 months.
  • Other implants, prostheses, foreign bodies, patches, etc. that are not suitable for magnetic resonance imaging examination; There are electronic implants such as pacemakers, stimulators, insulin pumps, cochlear implants, etc.
  • Critical patients equipped with various rescue devices, as well as subjects with any emergency medical conditions requiring first aid.
  • Subjects with poor compliance, which the researchers believe should be excluded.
  • Other situations that the investigators believe are not suitable for participating in this experiment.