Linen Tags Tested and Approved for MRI Scanners

Successful tests on a new UHF RFID linen tag has confirmed that the tag and related families of tags can be labelled MR Conditional for use with all types of 1.5T and 3T Magnetic Resonance Imaging (MRI) systems.

Testing included various MRI exposures, and MRI related issues such as magnetic field interactions, artifacts, and heating, at an renown MR safety testing facility that also evaluates other materials, implants, and various devices.


The Fujitsu Frontech (Foothill Ranch, CA, USA) WT-A533 Ultra-High Frequency (UHF) Radio Frequency Identification Device (RFID) linen tag was tested by the Magnetic Resonance Safety Testing Services (MRSTS) MRI test facility. The test results were posted on the MRIsafety.com website. The MR Conditional rating is also for the WT-A53x and WT-A52x families of UHF RFID linen tags.

The linen tags are used in healthcare garments, flat lines, and scrubs and are designed for industrial laundry applications. Following the MR Conditional approval the linen tags can now also be used in sheets.

Frank G. Shellock, PhD, Keck School of Medicine, University of Southern California, said, “We were very impressed with the Fujitsu Linen RFID Tab. The construction of the tag and selection of internal components make it ideal for use in hospital garments and linens used in and around MRI systems. We were also surprised by the relatively small image artifact generated by the tag. The measured maximum image artifact of 2 millimeters under worst case MRI conditions will substantially reduce the impact on the diagnostic use of MRI.”

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