"The changes in net magnetization produced by each excited voxel are combined to form the total signal measured in MRI."
The fMRI technique tracks minute variations in blood flow that are brought on by brain activity. It can be used to investigate the functional anatomy of the brain, identify the regions of the brain responsible for vital functions, assess the consequences of a stroke or other illness, or determine how best to treat the brain. Other imaging methods may be unable to find abnormalities in the brain that fMRI can.
Any health issues, recent surgeries, allergies, and the possibility of pregnancy should be disclosed to your doctor. Although the magnetic field is safe, it could make some medical equipment inoperable. Although the majority of orthopedic implants are risk-free, you should always let the technician know if you have any implants or metal in your body.
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