u/chris_m_hClinician communityin r/emergencymedicine • Recommends
How dangerous are magnetic items near an MRI magnet? (video)
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How dangerous are magnetic items near an MRI magnet?
practiCal fMRI
10K subscribers • 1 video on Rounds
- Recommended by 2 people, 1 of them a clinician or researcher, in r/emergencymedicine and Hacker News, across 2 different months.
- May be out of date. Uploaded 15 years ago, in an area where guidance changes.
Assumes interest and some biology. Education, not medical advice.
19M views15 years ago2 recommendations
Clinical medicineDiagnosis and clinical reasoningClinical skills and exams
Demonstrations of the powerful magnetic forces of a 4 Tesla MRI scanner using various metal objects.
UPDATE: Questions about why we were doing what we were doing? Please see the FAQ under "MRI magnet quench: the movie." That video is also entertaining, btw. Fun, games and safety implications with a 4 tesla (T) MRI magnet that was about to be decommissioned. Note how magnetic objects let loose tend to oscillate along the magnet bore. That's because the peak magnetic field gradients are at either end (near the magnet face), causing peak acceleration as the object enters, followed by progressively damped changes of direction. See practiCalfMRI.blogspot.com for more information.Why it's here
2 people recommend thisWhat people say. Recommended to illustrate the extreme physical dangers of bringing ferromagnetic objects near an MRI machine.
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