Why is mri intrinsically insensitive technique?

MRI refers to Magnetic Resonance Imaging. MRI is considered to be intrinsically insensitive compared to other analytical tools because, for a thermally polarized sample,  only a few fraction of the total number of the NMR active sample contribute to the overall signal produced. Thus, the technique has low nuclear spin polarization and low signal detection efficiency. 

'Sup queen Madrid

Real Madrid and Barcelona, both won't this season

It's Atlètico