Open MRI
MRI stands for Magnetic Resonance Imaging, a non-invasive, radiation-free scanning technology that uses radio waves and magnetic fields to produce clear and detailed three-dimensional images of nearly all organs and hard and soft tissues in the body. The multifunctional MRI can be used to identify or precisely locate an injury or abnormality, to scan for developing problems or analyze damage from previous trauma, and to aid in the planning of surgery.
Unlike x-rays, radioisotopes and CT scanning, MRI uses radiofrequency waves, making it safer than other methods that use radiation. Radio waves detect differences in water concentration and distribution in various body tissues.
MRI produces images of any area of the body and can be an invaluable tool for detecting a wide range of joint and musculoskeletal disorders of the knee, shoulder, hips, wrist and hands, including those affecting the tendons, ligaments, muscles and bones. It can also be used to determine the cause of back pain and diagnose a herniated disc or pinched nerve. In addition, our MRI is certified by the American College of Radiology. This certification requires that the MRI machine and the associated radiologist who is in charge of reading our studies must meet very stringent requirements of quality testing and quality control.
People with claustrophobia may feel uncomfortable in a traditional or "closed" MRI unit because they must lie still inside a narrow tunnel within the scanning magnet. Fortunately, new technology has allowed for the creation of more patient-friendly open MRI systems, in which the patient is only partially enclosed, for a much quieter and more comfortable experience. Patients can also have a friend or family member in the room with them during an open MRI procedure.
Open MRI Scan Procedure
During an MRI scan, the patient lies on a table in the open MRI unit while the technicians wait outside the room. Communication is possible with an intercom system. An IV may be necessary to supply an anticoagulant saline solution if the exam requires a contrast material for better imaging of blood vessels or other structures. When all scans have been taken, the results are sent to a radiologist for examination.
Each MRI scan can last from two to 15 minutes, but up to six images may be needed for a proper diagnosis, for an average total exam time of about 15 to 45 minutes. There is no palpable or physical damage caused by radiofrequency waves or the MRI unit. The only thing you may feel during the procedure is a change in temperature (warmth, or coolness if a contrast material is used) at the scan site. Some patients are bothered by the tapping or clicking noise of the machine; ear plugs may be helpful.
The results of an MRI are usually available within 24-48 hours, at which point your doctor will discuss any findings with you and determine an appropriate course of treatment.
Risks of Open MRI
While an MRI is considered a safe diagnostic procedure with no major risks or side effects for most patients, its use of a strong magnetic field may lead to serious complications for some. Patients certain conditions should not undergo an MRI exam, including those with:
- Cardiac pacemaker
- Implantable cardioverter defibrillator
- Cochlear ear implant
- Pregnant
- Breastfeeding
- Intrauterine device
- Metal implants
- Surgical staples
Patients should remove all metal objects, including jewelry, hair clips, and hearing aids, before undergoing this procedure in order to reduce the risk of complications. Your doctor will provide you with specific instructions to prepare for your procedure, as well as discuss the details and risks of an open MRI exam.
To view our patient education animations, click here.
To learn more about our open MRI, please call us today to schedule an appointment.
