MRI

April 13th, 2010 by admin

Magnetic Resonance Imaging
What is MRI? MRI stands for Magnetic Resonance Imaging.  It is a test that produces very clear images of the human body without the use of x-rays.  Instead, MRI uses a large magnet, radio wavers and a computer to produce these images.  A versatile and powerful tool, MRI can generate thin-section images of any body part and can be taken from any angle and direction, within a relatively short period of time. Most MRI exams performed at Southeastern Med last between 20 to 45 minutes as compared to 60 to 90 minute scan times of most other scanners.  MRI is generally used to image the brain, spine, and orthopedic or joint studies.  The MRI unit in our facility is also used to image blood flowing in virtually any part of the body.  Physicians can use this information to map the arterial system in the body and locate areas with little or no flow.  This information is vital for stroke prevention and diagnosis of vascular disease.  
How safe is MRI? MRI is quite safe, certain persons may not be able to have an MRI performed due to certain basic restrictions that must be observed.  The MRI utilizes a very strong magnet.  The MRI at Southeastern Med is a GE 1.5 Tesla unit®.  Persons with Cardiac Pacemakers must never have an MRI, even if the pacemaker is non-functioning.  Other types of  implants that are not advised to go into a strong magnet field are Brain Aneurysm Clips and Cochlear (inner ear) implants.  People with pieces or fragments of metal close to or in such body parts as the eye may not be able to have an MRI performed.  You will be given a question & answer sheet to complete that asks you if you have these devices and other objects that may interfere with or prevent you from having an MRI safely.  We also interview everyone along with this checklist to insure your safety as well as deciding the proper way to approach your particular symptoms.  This is also an opportunity for us to alleviate any fears or concerns you may have.
What will I experience? You will be lying on a special table that moves you into the center of the magnet.  Prior to going into the magnet, you will be offered earplugs to reduce the noise associated with MRI examinations.  Loud "hammering" and "buzzing" noises will be heard throughout the study.  These noises are a natural part of all MRI machines and produce the radio waves in the magnetic field that aid in the creation of the final images.  It is very important that you remain still while the noises are heard.  The slightest but of movement can affect picture quality. The table may slightly adjust between sets of scan and is normal.  Depending on the type of study and/or what your physician is looking for, you may be given a small amount of fluid in a vein to highlight certain structures. 
Is this a "closed" MRI? Frankly, there is no such thing as a "closed" MRI.  The MRI unit is a tube open on both ends. The new scanner has more room than before offering a light on the inside of the tube as well as a fan to keep air moving through the scanner, helping you relax during your exam.  A two-way speaker system is on at all times and the MRI technologists will  be in constant contact to make sure you are comfortable and informed as to how long each set of scans will take.  You are never left alone during your exam!
Contact Information Any questions you may have can be answered by calling us at 740 439-8040.  If we are not available at the time you call, leave a message on the voice mail and we will return your call as soon as possible.  The MRI department is located within the Diagnostic Imaging department on the ground floor at Southeastern Med.  We look forward to serving your needs.  Thank you!
MRI testing

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