This is pretty cool amendment to my chemistry nuclear folder.
Polarizing your own blood cells.
Fine, OK then, press the switch and let’s go.
byu/liangjianyi7 inDamnthatsinteresting
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I think I made a mistake, its polarized H2O molecules not the Iron in your blood.
Since H is + Oxygen -2 you get a polarized (N vs S) molecule and through the imaging you can see.
MRI Is still fascinating I dont know how someone figured that out.
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MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field. When the radiofrequency field is turned off, the MRI sensors are able to detect the energy released as the protons realign with the magnetic field. The time it takes for the protons to realign with the magnetic field, as well as the amount of energy released, changes depending on the environment and the chemical nature of the molecules. Physicians are able to tell the difference between various types of tissues based on these magnetic properties.
Source: https://www.nibib.nih.gov/science-education/science-topics/magnetic-resonance-imaging-mri
I find that super interesting
Theres really nothing Nuclear about it except the definition.
As such in that a reactor reaction is just a chain reaction blowing a part of the excess neutron away.
This time its the way the whole polarized atom spins, although I read its hydrogen mainly monitored.
What a great invention.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1121941/
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says right on the thing forces the protons, which are the +H’s in a bunch of H2O molecules to align with magnetic field, the way it reacts after the magnetic field is turned off, can determine the type of tissue.
I guess you can monitor this very accurately with a type of radio frequency applied.
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How to apply Radio Frequency to MRI
Its called a Larmor Frequency it is applied near the spinning center of MRI machine, from there what I read is a pulse
https://mriquestions.com/radiofrequency-waves.html
__ Guess I was about to write about how they detect these changes, but isnt it the Volumen and Gadolinium which is element 64 that is how they deploy the sensor.
