Modelling the induced field of transcranial magnetic stimulation
A cool paper has come out recently on how the effect of a TMS pulse should be modelled. https://www.brainstimjrnl.com/article/S1935-861X(19)30409-7/fulltext
This paper suggests that the magnitude of electric field, not its normal component, is most important.
Also, in this paper by Mikkonen & Laakso (2019), they highlight some things to consider about the position of a subject during the imaging procedure.