The nucleus in MRI refers to the hydrogen nucleus in the human body.
Magnetic Resonance Imaging (MRI) is a biological magnetic spin imaging technology, MRI “nuclear” refers to the hydrogen nucleus, the human body is composed of about 70% of water, so the hydrogen atoms throughout the body, MRI imaging principle that is through the addition of a strong magnetic field, radio frequency pulses excitation of hydrogen nuclei in the body, so that it absorbs the energy and produces Nuclear magnetic resonance phenomenon.
After the radiofrequency pulse stops, the hydrogen nucleus will release the absorbed energy and send out a specific frequency radio signal, the receiver outside the body receives the signal, and then converted by the electronic computer processing, it can eventually form the morphology of the human body’s various tissues, which can be used to help clinicians to make a diagnosis.
MRI can directly make the human body coronal plane, cross-section, sagittal plane and a variety of oblique body image, and will not produce CT examination artifacts, without adding contrast agent, no ionizing radiation, the general body will not have adverse effects, more safety, is widely used.