Magnetic Resonance Imaging
(HIGH
RESOLUTION AND OPEN MRI)
Magnetic Resonance Imaging is based on using a powerful magnetic field in conjunction
with radio-frequency signals and a computer to create images of structures
in the body.
Magnetic Resonance is most commonly used in evaluation of patients suspected
of tumors, multiple sclerosis, inflammatory diseases, disc disease, and cartilage,
soft tissue or tendon abnormalities.
Current software advances allow noninvasive imaging of the vascular structures.
This is referred to as Magnetic Resonance Angiography (MRA). Technologic enhancements
are also now available which allow for 2 Dimensional and 3 Dimensional imaging.
Specifically, 3 Dimensional imaging of the knee for anterior cruciate ligament
injury has shown to be very useful.
Some exams do require the injection of a contrast media, usually Gadolinium.
This should be avoided in patients with diminished renal function or in women
who are breast feeding.
Examination Time: 40 minutes to 1 hour
Precautions: Safety during pregnancy has not been established. Patients who
are known to be claustrophobic will be scheduled on the Open MRI.
Exam
Contraindications:
- Patients with a pacemaker or battery operated device that cannot be removed.
- Certain intra-cranial aneurysm clips.
- Certain eye and ear implants (Patients should ask their physician what type of middle ear implant they have).
- Sheet metal workers or patients with previous history of metal fragments in their eyes.
Patient Instructions: Report
to facility 15-30 minutes prior to exam to give information
concerning history.
Open MRI
Open MRI is available at our Overland Park, Independence, North and Plaza locations for patients who are claustrophobic. Patients can complete an MRI exam without the apprehension of going into the "tunnel." The state-of-the-art Open MRI system boasts high quality and high speed. For the patient, the unit is clearly more comfortable as it is open on all four sides. More...
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