the exact location or relatively close to the location of the connector.
However, MRI artifacts can be minimized by careful selection of
pulse sequence parameters.
NOTE: The maximum artifact size, as seen on the gradient echo
pulse sequence, extends approximately 60 mm relative to the size
and shape of the reservoir.
Summary of MRI Artifact Information
Artifact
1215
Size (mm
)
2
Pulse
T1-SE
Sequence
TR (msec) 500
TE (msec)
20
Flip Angle
N/A
Bandwidth
16
(kHz)
Field of
24
View (cm)
Matrix Size 256 x 256 256 x 256
Section
Thickness
10
(mm)
Imaging
Parallel
Plane
(long axis)
WARNING
Ventricular catheter obstruction
of cerebrospinal fluid
ventricular catheters and reservoirs and must be assumed to
be potential complications in the use of the Ventriculostomy
Reservoir Set.
PRECAUTIONS
Inspect the sterile package carefully. Do not use if:
• the package or seal appears damaged,
• contents appear damaged, or
• the expiry date has passed.
Exercise extreme care to prevent the silicone rubber
components from coming in contact with towels, drapes,
talc, and other granular or linty surfaces. Silicone rubber is
very electrostatic, attracting airborne particles and surface
contaminants which could produce tissue reaction.
Since silicone rubber has a low cut and tear resistance,
stainless steel ligatures should not be used, and ligatures
should not be tied too tightly.
The stylet is for single use only.
Observe aseptic technique throughout placement and use of the
ventriculostomy reservoir.
Table 1
788
T1-SE
500
20
N/A
16
24
10
Perpendicular
(short axis)
and subcutaneous leakage
5,6
have been reported in the use of
2
4
2904
4957
GRE
GRE
100
100
15
15
30°
30°
16
16
24
24
256 x 256 256 x 256
10
10
Parallel
Perpendicular
(long axis)
(short axis)