Dräger Fabius, Instructions For Use Manual, Page: 225 / 232

Instructions for Use Fabius MRI SW 3.n
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Appendix 2 - Imaging Test Protocol
The purpose of the imaging test protocol is to verify
that the Fabius MRI does not interfere with the
diagnostic quality of the MR images.
Imaging Test Protocol (ITP) Overview:
An ITP is required to complete the installation and
approximately 30 minutes of magnet time
is needed. The ITP consists of four scans,
described as follows:
1 The first scan (a gradient echo scan with a small
flipangle (e.g. ,10 degree)) should be performed
with the anesthesia machine outside the MRI
room and with a standard MRI phantom placed
in the center of the head coil. This is a baseline
scan to verify the room integrity (i.e., to prove
the absence of image artifacts caused by non-
optimal performance of the MR scanner itself or
by interference with other external radio-fre-
quency (RF) sources).
2 The next scan (using identical scan parameters
as before), again with the head coil, is per-
formed with the anesthesia machine in the MRI
room in a position typical of where it is used clin-
ically.
3 For the third scan, again with the machine in the
MRI room in a position typical of where it is used
clinically, remove the head coil from the MRI
system and place the phantom in the center of
the body coil. The scan has to be performed
with the body coil (if necessary, sequence
parameters may be adapted to body coil scan-
ning).
4 The fourth scan shall be any type of clinical
scan chosen by the MRI technician. The scan
shall be performed using any type of imaging
coil, with the anesthesia machine in the MRI
room in a position typical of where it is used clin-
ically. For example, a type of MRI scan known
to be particularly sensitive to RF interferences
may be selected. If the head coil is used in this
sequence, scan #4 should be performed before
scan #3 (the body coil scan) to avoid an extra
change of RF coils and repositioning of the
phantom. In case of MR imaging artifacts
observed in scan #4, this scan should be
repeated with the anesthesia machine being
positioned outside the MRI room, for better
direct comparison.
Type of scans: 3 scans: Gradient Echo (GE,
FFE)
1 scan: customer choice