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What are the different types of MRI's?
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1.  Magnetic Resonance Imaging (MRI) is a medical imaging technique that uses magnetic fields to visualize the internal structures of the body.
2.  Functional Magnetic Resonance Imaging (fMRI) is a type of MRI used to study brain function.
3.  Diffusion Tensor Imaging (DTI) is an MRI-based technique for visualizing white matter tracts in the brain.
4.  Magnetic Resonance Spectroscopy (MRS) is a type of MRI used to measure metabolic activity within the body.