[ntenenz]

Most MRI's are nowhere near 10T. Scanners in hospitals are typically either 1.5T or 3T. 7T exists, but is _extremely_ rare in clinical practice.

[gpm]

This is a good comment, but I think it's worth emphasizing that this is the difference between "7 orders of magnitude" and "6 orders of magnitude". It doesn't in any way invalidate the point in the comment it is replying to.

[zwkrt]

Yes I was doing that annoying thing physicists do where if we are off by 100x we consider ourselves to have succeeded greatly.

[testvox]

TMS is not done with a MRI machine.