Because it is magnetic field imaging, it is not radioactive, so it is harmless to human body and very safe.
Magnetic resonance imaging (MRI) is the most effective imaging diagnostic method for diseases such as brain and spinal cord. It can not only detect tumors, cerebral infarction, cerebral hemorrhage, brain abscess, cerebral cysticercosis and congenital cerebral vascular malformation at an early stage, but also determine the types and causes of hydrocephalus.
For breast cancer, the first major gynecological disease that harms women's life and health in China, accurate screening through magnetic resonance imaging is helpful to find the early lesions of breast cancer; For people with "hypertension, hyperlipidemia and hyperglycemia", we can detect high-risk diseases such as heart disease and cerebral infarction at an early stage through magnetic resonance examination of the head and heart before the health has issued a red light warning.
Extended data:
The basic principle of magnetic resonance imaging (MRI) is that the human body is placed in a special magnetic field, and the hydrogen nucleus in the human body is excited by radio frequency pulses, so that the hydrogen nucleus vibrates and absorbs energy.
After stopping the radio frequency pulse, the hydrogen nucleus sends out a radio signal at a specific frequency, and releases the absorbed energy, which is collected by a receiver in vitro and processed by an electronic computer to obtain an image, which is called nuclear magnetic resonance imaging.
Baidu encyclopedia-nuclear magnetic resonance