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Multiple Sclerosis Info
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Sunday, April 20
MRI 10 of 14
by
multiplesclerosis
on Sun 20 Apr 2008 12:00 AM CST
The fact that MRI systems do not use ionizing radiation is a comfort to many patients, as is the fact that MRI contrast materials have a very low incidence of side effects. Another major advantage of MRI is its ability to image in any plane. CT is more »
Wednesday, April 16
MRI 9 of 14
by
multiplesclerosis
on Wed 16 Apr 2008 07:36 AM CST
Most imaging modalities use injectable contrast, or dyes, for certain procedures. MRI is no different. What is different is the type of contrast we use, more »
Monday, April 14
MRI 8 of 14
by
multiplesclerosis
on Mon 14 Apr 2008 12:00 AM CST
The human body is made up of untold billions of atoms, the fundamental building blocks of all matter. The nucleus of an atom spins, or precesses, on an axis. You can think of the nucleus of an atom more »
Sunday, April 13
MRI 7 of 14
by
multiplesclerosis
on Sun 13 Apr 2008 12:00 AM CST
The human body is made up of untold billions of atoms, the fundamental building blocks of all matter. The nucleus of an atom spins, or precesses, on an axis. You can think of the nucleus more »
Saturday, April 12
MRI 6 of 14
by
multiplesclerosis
on Sat 12 Apr 2008 12:00 AM CST
A very uniform, or homogeneous, magnetic field of incredible strength and stability is critical for high-quality imaging. It forms the main magnetic field. Magnets like those described above make this more »
Friday, April 11
MRI 5 of 14
by
multiplesclerosis
on Fri 11 Apr 2008 01:00 AM CST
Resistive magnets consist of many windings or coils of wire wrapped around a cylinder or bore more »
Thursday, April 10
MRI 4 of 14
by
multiplesclerosis
on Thu 10 Apr 2008 12:00 AM CST
Prior to allowing a patient or support staff member into the scan room, he or she is thoroughly screened for metal objects. Up to this point, we have only talked about external more »
Wednesday, April 9
MRI 3 of 14
by
multiplesclerosis
on Wed 09 Apr 2008 12:00 AM CST
To understand how MRI works, let's start by focusing on the "magnetic" in MRI. The biggest and most important component in an MRI system is the magnet. The magnet in an MRI system more »
Tuesday, April 8
MRI scan
by
multiplesclerosis
on Tue 08 Apr 2008 09:05 AM CST
If you have ever seen an MRI machine, you know that the basic design used in most is a giant cube. The cube in a typical system might be 7 feet tall by 7 feet wide by 10 feet long (2 m by 2 m by 3 m), although new models are rapidly shrinking. There is a horizontal tube running through the more »
Monday, April 7
How MRI Works 1 of 14
by
multiplesclerosis
on Mon 07 Apr 2008 07:51 AM CST
On July 3, 1977, an event took place that would forever alter the landscape of modern medicine. Outside the medical research community, this event made scarcely a ripple at first. This event was the first MRI exam ever performed on more »
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