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Overview

Magnetic resonance imaging (MRI) is a non-invasive medical imaging technique to generate images of the organ of interest. MRI scanners use strong magnetic field to align the water protons which generates a resultant bulk magnetization vector, radio waves to flip the resultant magnetic vector, and field gradients to spatially localize the signal which in turn generates images of the organs in the body.

Applications of MRI

MRI has a very wide range of applications in medical imaging. MRI is used to perform structural and functional imaging to understand the physiological processes of the body in both healthy and disease condition. The structural abnormalities associated with any disease condition e.g., tumor can be visualized with MRI images, which helps to perform image guided surgery. MRI is also used to perform functional imaging (fMRI) to understand the function of the brain as it responds to external stimuli and the passive activity in a resting state as well.


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