WHAT HAPPENS ?
MAGNETIC RESONANCE IMAGING ?
You should turn up for your appointment at least 15minutes early to allow for getting changed and so that some
Instead of using radiation( in normal xrays or a CATscan) or
sound (ultrasound ) Magnetic resonance Imaging [M.R.I.]uses magnetic energy to get the information for a computer
You can eat and drink before the MRI.
to generate pictures of the body. The picture in general canbe far better than images gained by other means. Different
The magnet will destroy anything magnetic so do not take
types of images can also be generated. They are generated by
credit cards/phone cards/watch or anything metallic into the
turning a giant magnet on and off and measuring your
PATIENT ABOUT TO GO INTO
MRI IMAGE OF
M.R.I. FOR BRAIN SCAN
The scan will take anything between 20 minutes and 1 hour
They will check if you have any metal in you with a metaldetector. You may even require some Xrays to check this.
WHAT IS IT USED FOR ?
You will get into a gown and go into the MRI room which is
It can show much more detail than a normal CAT scan
magnetically sheilded. If it is a spinal MRI you will lie on a
Blood vessels can be looked at for abnormalities.
CT IMAGE OF
special sensor but if it is of your brain you will place your
It can be used to screen for certain conditions.
SAME DISC PROLAPSE
head into a special coil as seen in the picture.
It can be used to add further information needed to make
A special type of conveyer belt takes you fully into the
machine. It is usually a close fit. You have headphones to
listen to some music. A fan blows air through the tunnel to
It may be used to image
Spine /spinal cord
The images are no good if you move so it is very important
It may show a disc prolapse not seen on a CAT scan
to keep still.
WHY ARE YOU HAVING AN M.R.I. ?
It shows the spinal cord which is not seen well on CAT scanIt shows the quality of your discs.
You can contact the technician by a buzzer and they can
It can diagnose some neurological conditions.
hear you . They will give instructions from time to time.
There is probably more information needed by your doctor
If you need to get out push the buzzer to let them know.
either to help with surgery or to determine if surgery is
There is a lot of loud banging while the machine works
It reduces the need to get an angiogram to look at the
If you need contrast you will be brought out of the machine
cerebral vessels when looking for abnormalities.
and this is injected into a vein and you go back in.
It may show things not seen on a CAT scan.
WHO CAN ORDER AN M.R.I. ?
It will help diagnose some condidtions.
When it is finished you can go home. The pictures andreport are usually sent to the doctor who referred you, but
Usually only a specialist can order an M.R.I. if you wish to
Nerves in the limbs.
somtimes you will be requested to pick them up.
get the medicare rebate. If not it can be ordered by your
It can show compression in the nerves in your hands or leg.
It is used to show tumours in nerves .
WHAT DO YOU NEED TO TELL THE
DOCTOR BEFORE HAVING AN M.R.I. ?
This is not the same as Xray contrast so that even if you are
allergic to Xray contrast you can usually have the MRIcontrast which is injected. Contrast is not always needed.
Usually you cannot have an MRI if you have
Cerebral Aneurysm clipsMetal clips in head for other reasonCardiac pacemaker
E L B O U R N E
How much and who Pays the bill
This depends not only on where you are having the MRI
Spinal cord stimulators or other types of stimulator
If it is a workcover problem then they usually pay the bill.
If it is not workcover and you are going to a registered
scanner then medicare will pay part or all of the bill. There
(tell us if you were in a war or ever been a welder)
is usually some out of pocket expense and it depends onwhere the scan is done as to how much this is.
If there is a doubt about you having a contraindication then
If the scanner is not registered then medicare does not pay a
either your doctor will be contacted or you may be reap-
component of the bill and the fees vary greatly for this scan.
pointed. Sometimes you will have an Xray of your eyes orother parts of the body just to make sure.
Please let us Know.
If the test can be avoided we would, especially in the first
E L B O U R N E
MAGNETIC RESONANCE IMAGING
three months. There are some sites that use the MRI toactually look at the baby and also do an MRI to avoid
545 ROYAL PARADE
normal X rays so it is not totally contraindicated.
PARKVILLE VIC 3052
PHONE 03 9816 - 9844
FACSIMILE 03 9816 - 9877
This is the fear of enclosed places. If this is a problem then
ACN 082 289 316
tell us before we book the scan. The reason for this is that
there are scanners called OPEN MRI units. These are not as
This brochure is to provide general infor-
enclosed as normal machines. The only problem is that the
mation and does not replace a consultation with your doctor.
pictures from an open scanner are usually not as good. If
the pictures need to be done on an enclosed machine thensedation may be required and we like to organise this prior
This brochure is copyright. No part of it may be repro-
duced in any form without prior permission from the pub-
Journal of Environmental Science and Health Part A, 41:173–184, 2006Copyright C Taylor & Francis Group, LLCISSN: 1093-4529 (Print); 1532-4117 (Online)DOI: 10.1080/10934520500351884 Fecal Contamination ofAgricultural Soils Before andAfter Hurricane-AssociatedFlooding in North CarolinaMichael J. Casteel,1 Mark D. Sobsey,1 and J. Paul Mueller21Department of Environmental Sciences and En
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