Esaote O-scan eXP, Руководство пользователя

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350004900 Rev. 07 7 / 48
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Instructions for Safe Use
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external magnetic and RF disturbance exceeding the specified limits of
the shielding elements and possible magnetic compensation were taken
into account during the pre-installation phase
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deterioration of shielding elements.
In this case, the user should contact Esaote-authorized service personnel
for assistance.
Peripheral equipment compatibility test
The manufacturer of the peripheral equipment can assess the influence of
the O-scan system on the relative device using the special protocol
“susceptibility test”, the procedure of which is described in the chapter
“System management” in the user interface manual.
The test is aimed at assessing susceptibility to electromagnetic
disturbance of the peripheral equipment located in the vicinity of the
O-scan system; the test does not provide guarantees regarding correct
operation of the peripheral device.
This test also enables the user to verify the susceptibility of the O-scan
system to electromagnetic disturbance caused by peripheral equipment
located in the vicinity.
The “susceptibility test” protocol has been drawn up to enable operation of
the O-scan system with a high RF transmission field and high bandwidth
and gradient response speeds. The test can be carried out as per standard
procedure on the system.
The test configuration envisages the use of:
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Knee Coil 1
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geometric phantom. The geometric phantom is filled with a water
solution of NiCl
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and NaCl
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Susceptibility
protocol, containing the sequences:
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Spin Echo 18 , to assess susceptibility of peripheral equipment to
electromagnetic disturbance caused by the system. The parameters
are: TE = 18 ms, TR = 530 ms, FOV = 100*100, acquisition matrix
= 256*256, number of slices = 14, slice thickness = 2 mm, gap =
1 mm, number of excitations = 6.
W a r n i n g
Artifacts on images can be caused by loss in efficiency of the
shielding elements and possible magnetic compensation. In this case,
contact Esaote-authorized service personnel for assistance.