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Mirage Imaging MRI Center
is pleased to announce the acquisition of an advanced
imaging technique called Magnetic Resonance Angiography
(MRA). MRA is a non-invasive procedure that
provides the capability to visualize the vascular
structures of the human body. Hitachi's MRA
utilizes the Time-of-Flight method to acquire images of
blood vessels.
2D Time-of-Flight acquisitions typically demonstrate
high contrast of fast flowing blood. This
technique is advantageous for imaing the carotids and
for angiography of the body. A walking
presaturation pulse, selectively placed above or below
each slice, provides images of either the arterial or
venous flow.
3D Time-of-Flight acquisitions excite an entire volume
of tissue providing increased resolution of the vascular
structures. This technique is advantageous in
imaging small vessels in the brain. Multi-slab
acquisitions are often used to decrease saturation
effects in flowing blood and improve resolution.
The images are reconstructed using a maximum intensity
projection, or MIP technique, which enables three
dimensional viewing of the vascular anatomy. The
rotational projections can be photographed
conventionally or recorded on a videotape for your
review.
MRA can be used to screen for various vascular diseases
and pathological conditions throughout the body.
Clinically, MRA may be useful in diagnosing aneurysms,
vascular malformations, occlusions, stenosis,
thrombosis, and vascular tumors.
We look forward to providing you and your patients with
the quality and courteous service you have come to expect
from Mirage Imaging MRI Center. If you have any
questions about our facility or the new pelvis coil,
please do not hesitate to call us.
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