2023 C-Arm Prices Info-Graphic

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Using MRI Phantoms
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By Vikki Harmonay
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MRI is one of the most popular and effective
tools for the diagnosis of diseases. However, if
an MRI image is distorted or unclean, it can lead
to undiagnosed or missed diseases and delayed
treatments. Without an accurate and quick
diagnosis, treatment plans could be delayed and
could even lead to more harm or even death to a
patient. In addition, a misdiagnosis from a poor
image quality could result in a costly
malpractice suit. So, how can you be producing
high-resolution images of anatomical structures
that will provide doctors with the information
they need in order to provide an appropriate
treatment plan for patients? By using MRI
phantoms in calibration and quality control, you
can get better image generation for more accurate
diagnosis of diseases.
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• There are four more good reasons to use an MRI
  phantom for quality control in your clinical
  environment as well
• The law requires a proper QC program for MR units
  in the U.S.
• Image testing is required as part of the quality
  control checklist for MR units
• By utilizing scheduled phantom tests, you can
  avoid costly malpractice suits
• These quality control efforts can ensure image
  integrity
• The Medicare Improvement Patients and Providers
  ACT (MIPPA) is a part of U.S. Quality Control. In
  order for an MRI site to be accredited by the
  American College of Radiology, a series of
  measurements tested with an MRI phantom is
  required on a weekly/annual basis.

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Before You Buy An MRI System
You can use phantoms to test different scanners
you are considering for purchase. These phantoms
assess the systems stability and comparability
of measurements across a variety of MRI units.
When these tests are done with the same phantom
among the different MRI units, you should see
similar results. In fact, phantoms can be used to
test other phantoms to determine their accuracy
in the imaging field.
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Which Phantoms Should You Use?
There is an accreditation phantom constructed of
acrylate plastic, silicon rubber and glass that
is required by the American College of Radiology
(ACR). Ferromagnetic materials are excluded. This
cylindrical unit is 20.4cm in diameter by 16.5cm
in length. The internal dimensions are 19.0cm in
diameter by 15.0cm in length. Phantoms are
available from a variety of vendors, and each has
unique proprietary designs. They are all designed
to test the integrity of MR images on all types
of scanners.
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Youll want to make sure that your phantom is ACR
accredited, contains reference points for chin
and nose, are compatible with all cradles and
includes a small all-plastic level to ensure the
phantom is level. Phantoms cost between
1,361-3,000, with the price points being based
on the materials that are used, the size and the
accessories that are included. Your biomed team
will be able to recommend a phantom that is
appropriate for your practice. When you perform
a phantom test on an MRI unit, you will learn the
following
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• RF or radio frequency
• static mag fields
• gradient amplitude
• slice position and profile
• geometric linearity

• image uniformity
• accuracy and precision of proton density
• Signal to Noise ratio (SNR)
• system constancy

Talk To An Expert
Do you have questions about phantoms, MRI
machines or testing? Talk to the experts at
Atlantis Worldwide. Weve been helping clients
find the ideal medical imaging solutions for more
than 30 years and would love to help you. Contact
Us Today!
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Some blogs you may have missed

• The Future of Helium MRIs
• MRI Cold Head Tips
• Service Contracts for Imaging Systems Penny Wise
  and Pound Foolish?
• Radiologists, Healthcare Social Media
• Should your business lease or buy medical imaging
  equipment?
• Free MRI Resources

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