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Magnetic Resonance Imaging, or MRI, does not use any kind of harmful ionising radiation, so it carries fewer health risks. Also, it provides much better soft tissue contrast than X-rays, so it is used to diagnose problems in soft tissue such as muscles and ligaments. However, due to the strong magnetic fields involved, it is not suitable for patients with pacemakers, or metal plates or pins in their body.
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Are xrays used at airports?
YES
Which medical imaging technique depends on the use of xrays moving in an arc around the body producing a cross sectional image?
Magnetic Regonance Imaging (MRI)
What contrast medium is used in xrays?
iodine
Why is lead is used in xrays and xray shield?
Over-exposure can cause soft tissue damage, burns, sterility , and possibly cancer.
What are xrays waves used for?
chelsea say head
Is a MRI a treatment?
No. It is not a treatment it is a scan. An MRI is a Magnetic Resonance Imaging. MRI are used for imaging tissues.
Why is americium in xrays?
Americium is not used in X-ray instruments.
When is a MRI used?
they are used when you are sick.
Mri and xrays what is the preference of most people?
It's not really a personal preference kind of thing, although older MRI machines, because of their cave-like shape, are tough on claustrophobes. Xray machines are an order of magnitude less expensive (at least) and require a lot less maintenance, so usually, if you're to receive an MRI, they'll at least look to see if an xray reveals the problem. Xrays reveal details of bony processes and other dense materials really well, but don't do nearly as well with soft tissues. MRI's can give very detailed views of soft tissues, which can every be applied to 3d and 4d imagery. On the other hand -- as I said -- MRI machines are pricey. Also, in trauma's MRI's require electromagnetic isolation, which means a special room for them. Also, metals, particularly ferric metals, need to be kept away from the machine. This makes MRI usage difficlut in acute traumas.
Are there certain tests a doctor can do to see if you have bone disease?
Yes, they can perform blood tests, xrays, CAT Scans, MRI. Bone density test. They might also do a bone marrow test.
What type of electromagnetic radiation is used in airport security screening?
XRAYS
When should MRI's not be used?
MRI scanning should not be used when there is the potential for an interaction between the strong MRI magnetic field and metal objects that might be imbedded in a patient's body.
