University Of Tasmania

File(s) not publicly available

Transcranial magnetic stimulation and movement of aneurysm clips

posted on 2023-05-25, 21:14 authored by Saxby PridmoreSaxby Pridmore, Lawson, F
  • The safety of treating people who have intracranial titanium aneurysm clips with TMS has received little attention.
  • We suspended a titanium clip and other metal comparators on 1.5 m of sewing cotton and fired a TMS coil placed less than 1 cm away, at 100% machine output. Highly magnetic objects moved at least 25 cm, while the titanium clip did not move.
  • We placed the clip and a highly magnetic comparator, at first, in the flesh of a cantaloupe, and later, in a cold hard-boiled egg. After 75 trains of 10H z, 4 second trains, at 100% of machine output, in neither case could we perceive any movement of these objects.
  • This backyard experiment suggests we may have been worrying unduly about the danger of disturbing intracranial titanium clips with TMS, but sophisticated studies are indicated.


Commissioning body



Tasmanian School of Medicine



Place of publication


Repository Status

  • Restricted

Socio-economic Objectives

Treatment of human diseases and conditions; Mental health

Usage metrics

    University Of Tasmania