JMRIJ

JJJJJ

Intro

Have you ever heard of Magnetic Resonance Imaging or MRI? ItŐs about the coolest thing in the world! The magnets are awesome.  The kinds of MRI are cool, and you will of course learn what it is, the invention of MRI, and what it does.

 What it is

Have you ever wondered who makes the appointments for an MRI? According to how stuff works MRI are mostly appointed by neurologists.  Ask.com says a neurologist is a medical specialist in the nervous system and the disorders affecting it. Neurologists are very handy people.

 Have you ever heard how strong the magnets are in a MRI? Well if you donŐt you must know, howstuffworks.com says, The magnet in an MRI system is rated using a unit of measure known as a Tesla. Another unit of measure commonly used with magnets is the gauss (1 Tesla = 10,000 gauss). The magnets in use today in MRI are in the 0.5-tesla to 2.0-tesla range, or 5,000 to 20,000 gauss. Magnetic fields greater than 2 Tesla have not been approved for use in medical imaging, though much more powerful magnets -- up to 60 Tesla -- are used in research. Compared with the Earth's 0.5-gauss magnetic field, you can see how incredibly powerful these magnets are. That is really strong.           

Do you know what the difference is between an MRI and CT scan is?  According to How stuff works, ct scans and MRI are similar but they present different views for instance With an MRI scan it is possible to take pictures from almost every angle, whereas a ct scan only shows pictures horizontally. There is no ionizing radiation (X-rays) involved in producing an MRI scan. MRI scans are generally more detailed, too. The difference between normal and abnormal tissue is often clearer on the MRI scan than on the CT scan. So I think the MRI would be better.

 0.      Did you know there are 3 different kinds of MRI, According to stroke center, the different kinds of MRI are, Coronal orientation: in a slice dividing the head into front and back halves.


0.      Sagittal orientation: in a slice dividing the head into left and right halves.


Axial orientation: in a slice dividing the head into upper and lower halves.  You know the 3 views of an MRI.

The invention of MRI

The people who invented MRI are really interesting, According to www.med.nagasaki.com Felix Bloch and Edward Purcell, both of whom were awarded the Nobel Prize in 1952, discovered the magnetic resonance phenomenon independently in 1946.  And later invented and introduced the MRI

  Unfortunately MRI is not perfect, according to, www.mrireview.com  A 6-year-old boy died two days after he was smashed in the head by a metal oxygen canister that was pulled by magnetic force into the MRI machine where he was being examined.   

[what it does]

the MRI is a pretty complicated thing, howstuffworks.com says, In conjunction with radio pulses of energy, the MRI scanner can pick out a very small point inside the patient's body and ask it, essentially, "What type of tissue are you?" The point might be a cube that is half a millimeter on each side. The MRI system goes through the patient's body point by point, building up a 2-D or 3-D map of tissue types. It then integrates all of this information together to create 2-D images or 3-D models.      

DonŐt be afraid if you are claustrophobic it Since an MRI is a small tube you go into people can get claustrophobic or if a little kid just wont stay still they will sedate you, that means, calm, quiet, or composed. They are pretty interesting people

 

Conclusion

So if you are getting an MRI you will know a little about it, the history what it does and what it is.

 

 


Bibliography

 

Bibliography

Aboutinventters.com

Mary Bellis

magnetic Resonance imaging MRI

24 april, 2007

The magnetic resonance imaging or MRI wasinvvented by felik bloch and edward percell in the 1970's

 

Bibliography

http://www.mri.hku.hk/about mri.htm

University Of Hong Kong

about MRI

 

in the 1970's the MRI was invented

 

Bibliography

http://www.hitachimed.com/article.asp?ID=776

how stuff works

what does MRI do

25 APR. 07

MRI's are useed to look inside the human body

 

Bibliography

http://www.vet.ksu.edu/depts/development/perpet/profiles.htm

Ksuvm

Perpetual Pet Care Program Highlights

2007

animals Have MRI's but only if the onner really wants to or there vet thinks something is szerios

 

Bibliography

http://en.wikipedia.org/wiki/MRI

Wikipedia, the free encyclopedia

magnetic resonance imaging

APR. 25, 2007

ct scans and MRI's are very close to the same but