But it's not clear that Reince is, in fact, his given name. His name sometimes appears as Reince R. Priebus, and other times as Reinhold R. Priebus. Fred Priebus, the family patriarch, came to the United States near the turn of the 20 th century.
Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan.
Helium-3 is a very rare helium isotope, and you can do MRI/NMR of it. But that is not what happens in typical MRI of humans, as they don't contain any measurable amount of helium-3 (though there seem to be more exotic experiments that use it).he vast majority of helium used in MRI is for cooling, not as an imaging nuclei, to the point that I wasn't aware it was even used in that manner (but if Wikipedia says it, it must be true). The vast majority of helium on the planet is $He^4$, not $He^3$. â Colin McFaul Dec 11 '12 at 16:35.