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With
magnetic resonance imaging (MRI), doctors can view the
brain, spine, bones, joints, and internal organs in
a way that is not possible with other diagnostic equipment.
The MRI creates detailed images of soft tissue, muscles,
nerves, and bones through the use of a powerful magnet,
radio waves, and computer technology. This procedure
assists doctors in quickly and accurately diagnosing
conditions, without surgery or radiation.
The
MRI, or scanner, features a magnet that causes your
body's hydrogen atoms to align with the magnetic field.
A coil, which acts as a radio antenna, is placed near
the area that is being examined. The scanner generates
a radio signal, and your body's hydrogen atoms return
a signal which is processed by the computer and transformed
into incredibly detailed images.
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3D time-of-flight MR angiography of the Circle
of Willis reformatted in the axial plane. |
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A
paramagnetic, or contrast agent, may be given intravenously,
as part of an MRI exam. This helps to highlight certain
structures. Certain conditions, such as pregnancy, medical
implants, or pacemakers should be discussed with your
physician before undergoing the MRI exam.
The
Open MRI is open on the sides allowing the patient to
see around them during the exam. There is easy patient
access allowing a parent to hold a child's hand, or
comfort the patient during the exam. Many times the
Open MRI can scan patients who are too large to go into
a conventional MRI. The Open MRI utilizes advanced hardware
and software that make it possible to run most of the
sequences found on the 1.5T MRI systems.
The
advanced imaging techniques available with this system
include a sophisticated neuro-imaging package offering
FLAIR and magnetization-transfer sequences, as well
as fast-spin echo and inversion recovery fat-saturation
techniques. High-resolution scanning allows the performance
of thin-slice imaging to examine the head for pituitary
tumors and acoustic neuromas. MR Angiography capabilities
include 2D and 3D time-of-flight and phase contrast
pulse sequences. For musculoskeletal imaging, in addition
to routine high-resolution protocols, a dedicated 3D
DESS sequence is available, tailored to evaluate articular
cartilage.
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