What is a MRI test?
Magnetic resonance imaging, or MRI, is a type of diagnostic test that is used by doctors. Radiowaves and a magnetic field are used to produce images of the internal structures of the body, according to the University of Michigan.TypesThere are seven types of MRI tests listed by Rhode Island Hospital: cardiac, brain, pelvic, spine, bone and joint, abdominal and MRA (blood vessel). These MRI tests can be done with or without contrast dye.Time FrameMost MRI tests take 30 to 90 minutes to complete, states Harvard University. Preliminary results are usually available within a few days of the test. Complete results may take a week, as the MRI is reviewed by a certified radiologist.LimitationsMRI tests aren’t always suitable for people with pacemakers or metal implants, although modifications of the machine or devices are possible if the MRI is necessary. Pregnant or breastfeeding women may not be able to have an MRI.RisksMost people who have an MRI won’t have any negative effects from the pr
