Ferrofluid Used as MRI Contrast Agent: Heat Risk?

[anorred]

so it seems ferrofluids might be used for mri scanners as contrast agents. Wouldn't the ferrofluid get hot?

 

[mfb]

The strong field is static, I don't know the power of the weaker fields. In addition, if they are in good thermal contact to the environment the heat gets distributed quickly. I would not expect problems from heat.

 

[anorred]

Thanks!