Magnetic Resonance Imaging (MRI)
Marshall Diagnostic Imaging
Magnetic Resonance Imaging, or MRI, uses radio waves passed through a strong
magnetic field to produce remarkably good images of the body's internal
structures. It's especially effective for evaluating soft tissue areas
such as muscles, nerves, brain and organs.
The body produces various frequencies of radio waves depending on the body
part, and these frequencies are interpreted and mapped as digital images
by an advanced computer. MRI is one of the most important advances in
imaging technology in the last 25 years.
What to Expect
For the MRI exam, you'll lie on a table that slides into the magnetic
field. The equipment takes multiple images from various angles, and each
sequence can last for several minutes. The machine will make a lot of
noise, including banging, buzzing and knocking. Earplugs can help reduce
the noise, and for people for whom laying still may be problematic, options
exist including medication and sedation. Discuss this possibility with
your physician in advance if you feel it would be helpful.
You'll be able to communicate with the technologist performing the
exam while it's taking place, but it's important to remain very
still for the entire exam unless you're instructed to move. Because
you'll be lying in a large magnet, you should wear loose clothing
such as sweats that are entirely metal-free; or you will asked to change
into a gown for the exam. This is important for everyone's safety,
Since no radiation is involved in an MRI exam, someone may accompany you
into the exam area to offer support. Most exams last 30 to 60 minutes.
For more Diagnostic Imaging information, please call the
Placerville location at,
(530) 626-2861 or the
Cameron Park location at,