Table 4 MRI safety classification
From: Interventional cardiovascular magnetic resonance: state-of-the-art
Classification | Description |
|---|---|
MRI unsafe | Object may not enter the MRI room under any circumstances. Patients with MRI unsafe devices should not be scanned |
MRI conditional | Object may enter the MRI room only under the specific conditions provided in the labeling. Patients with MRI conditional devices should not be scanned unless the device can be positively identified as MRI Conditional AND the conditions for safe use are met Conditions for use may include restrictions regarding:  • Static field strength  • Maximum spatial field gradient  • dB/dt limitations (usually only applicable to active implants)  • SAR limits  • Other conditions, for example restrictions on the types of coils that may be used MRI Conditional objects NOT intended to enter the bore of the MRI scanner must typically be tethered or affixed to an unmovable part of the room |
MRI safe | Object poses no safety hazards and may be placed anywhere in the MRI room. Patients with MRI Safe devices can be scanner without restrictions |