MRI machines have strict safeguards in place to prevent them from delivering too much energy to the body, and “it’s impossible for it to run in a non-safe way.” However, contrast agents sometimes used to enhance visibility can cause problems for some patients.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help