Does MRI (magnetic resonance imaging) harm the brain?
Generally, MRI scans do not harm the brain. The detailed explanation is as follows:
MRI primarily works by utilizing hydrogen protons in the human body, which are excited by a main magnetic field and radiofrequency field to produce resonance signals. These signals are then amplified, processed, and reconstructed by a computer to generate magnetic resonance images. MRI does not involve nuclear radiation; its greatest advantage is that it is harmless to the human body and can quickly and accurately assess physical conditions. During an MRI scan, an instrument generates a magnetic field through electricity. The patient is placed within this magnetic field and exposed to a series of pulses that temporarily disrupt the motion of protons in tissues. Once the pulses stop, the energy levels and phases of the protons return to their pre-excitation state. Therefore, the procedure does not affect the brain.
In summary, undergoing an MRI scan poses no harm to the body. However, it's important to have this examination performed at a正规 hospital to ensure greater accuracy and effectiveness. If abnormal results are found, prompt medical attention and treatment are essential.