Wednesday, February 10, 2016

Open MRI Helps All Types of Patients Feel Better During the Test



Magnetic resonance imaging (MRI) uses radio waves and a magnetic field to show images and structures in the human body. Because computerized tomography (CT) scans, ultrasounds and x-rays all have limitations on what images they can show, an MRI is often preferable to doctors when trying to diagnose what is wrong with a patient.

The test is non-invasive and does not cause any pain. The exam requires that the patient lie very still while the machine brings the patient into the machine. A closed MRI machine consists of a tube that completely envelopes the patient. Because the exam takes 30 minutes to two hours and requires the patient to lie still, some patients experience claustrophobia as a result. An open MRI exam can help patients who have anxiety or claustrophobia.

Open MRI

Instead of a closed tube, an open MRI consists of a large ring that the patient passes through during the exam. The patient lies on a flat table and doesn't have to position their body in any awkward ways in order to fit into the machine. Because of the open configuration, the part of the body that is of interest can be centered in the magnetic field. This allows for a sharper image and better details.

Patients are allowed to wear headphones and listen to music in order to drown out any machine sounds that can cause nervousness or fear.

Benefits of an Open MRI

An open MRI may be especially helpful for:
  • Overweight or obese patients who may not fit comfortably in a closed MRI machine.
  • Young children who want a caregiver to stay close by during the test.
  • Older adults who need assistance.
  • Orthopedic patients who need an image of an extremity that is difficult to position properly in a closed machine.
  • Patients who are claustrophobic or nervous about being in closed spaces.
Open MRI Procedure

The patient will first be asked to change into a gown and to remove anything magnetic, such as jewelry, hearing aids or glasses. The patient will then lie down on a movable table. A dye may be injected through an IV line to enhance the tissues and structures that are being examined. The patient should lie as still as possible during the test.

Open MRI exams allow pediatric, bariatric, elderly and orthopedic patients a better option than the more confining closed MRI. The open view can cut down on stress and anxiety during the test.

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