The collected data can be used to create a composite, three-dimensional representation of the region visualized.  Any two-dimensional image (slice) can be selected electronically from this representation and displayed on a computer screen as well as printed on special film for review.

An MRI study can be used to obtain detailed views of soft tissues of the spine including the intervertebral disc, spinal (thecal) sac, the spinal cord and the spinal nerve roots.  By comparing variations in signal (T1 and T2 weighted images) tissue characteristics can be determined allowing a detailed look spinal tumors, spinal cysts, infectious abscesses within the spine and assessment of small metabolic shifts within spinal tissues.  There are many specialized forms of MR imaging. 

Specialized forms of MR imaging include:

Diffusion Weighted Imaging (DWI): A strong magnetic field is used to detect areas of tissue ischemia and to help determine the location and severity central nervous system injury. It is a valuable diagnostic method in the evaluation of stroke. DWI has been useful for mapping neuronal pathways in the cord and brain.

            Functional Magnetic Resonance Imaging (FMRI): is a computerized method of

evaluating areas of the brain which are responsible for specific functions, such as

speaking, comprehension, motor (muscle) activities, hearing and vision. The

procedure does not require radiation and is painless. Functional MRI may soon be applied to other bodily regions including the spine.

MRI Guidance Imaging: is used to assist physicians during surgery to plan the

approach and more precisely locate and remove the lesion.  Prior to surgery the

patient may undergo an MRI scan with special markers placed over one or more select regions.  The markers are used to register landmarks so that the MRI scan

information can be entered into a computer in the operating room.  The physician can use an instrument called a wand to touch the surgical area.  This method is used to help identity the specific lesion.  MRI guidance imaging is primarily used for the surgical approach to tumors involving soft tissues of the brain, spine, blood vessels, and nerves.