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Magnetic Resonance Imaging (MRI) Information
Non-clinical testing has demonstrated that
DePuy Mitek Metal Implants are MR Conditional.
A patient with a metallic implant can be scanned
safely under the following conditions:
3.0 Tesla Systems:
• Static magnetic field of 3.0 Tesla.
• Highest spatial gradient magnetic field of
720 Gauss/cm or less.
MRI RELATED HEATING
• Maximum MR system reported, whole-body-
averaged specific absorption rate (SAR) of
2.9 W/kg for 15 minutes of scanning (i.e., per pulse
sequence).
• MRI related heating was assessed for the
representative configurations of the Mitek metal
implants following guidelines provided in ASTM
F2182-02a. A maximum temperature change equal
to or less than 2.0°C was observed during testing
(parameters listed below).
Parameters:
• Maximum MR system-reported, whole-body-
averaged SAR of 2.9 W/kg.
• 15-minute duration MR scanning (i.e., per pulse
sequence).
• 3 Tesla MR System (EXCITE
Software G3 .0-052B, General Electric Healthcare,
Milwaukee, WI) using a transmit/receive RF body
coil.
ARTIFACT INFORMATION
MR Image quality may be compromised if the area
of interest is in the exact same area or relatively
close to the position of the Mitek metal implant.
Therefore, optimization of MR imaging parameters
to compensate for the presence of this device may
be necessary.
WARNINGS
1. DePuy Mitek anchors are designed to lock
into cortical or cancellous bone. Bone stock
must be adequate to allow proper and secure
anchor placement. Incomplete insertion or over-
tensioning or poor bone quality may result in
anchor pullout.
2. Immediate range of motion should be avoided to
allow biological bony/soft tissue healing.
3. This device is not approved for screw attachment
or fixation to the posterior elements (pedicles) of
the thoracic or lumbar spine.
MR Scanner,
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