Recent content by mfenty

mp3car: That's exactly where the twitching came from. The tech is an idiot if they don't know about eddy current muscular stimulation occurs during MRIs. All ( I think ) MRI techs need to be certified by https://www.arrt.org/ and I would assume that this concept is on their tests. They...

ATM - it depends on the oscilatory speed and strength of the magnetic field. There are a couple of dangers with fluctuations and strong fields. The biggest dangers are with eddy currents that can form during fast switching fields. Imagine that you are are inside a uniform magnetic field of...

Daveb - There are a lot of dangers associated with MRIs, I was trying to keep things focused on the heart Drakkith - I would say the most dangerous thing about getting an MRI is having metal on/around/near you (not including MRI-safe implants). The FDA sets very conservative limits on SAR...

Drakkith - I worked here for a little under 5 year (http://cmroi.med.upenn.edu/) The site is being updated so some of the links may be dead. That group had the first MRI scanner in 1984 (serial number 1) and has been doing work in the field since then. We do a lot of clinically-translatable...

I've worked in an academic MRI research lab for several years. The answer is - complicated. 1) For clinical scans that you will get (3 Tesla or lower) the magnetic field from the scanner will not affect your heart. 2) MRI creates images from RF waves coming from an antenna close to the...