Yttrium-90 has two inherent safety features for staff and patients:

  • the minimal penetration depth of beta radiation emissions through tissue and air
  • the relatively short half-life of 64.1 hours

Once patients have received the implant, they effectively become a radiation source.

  • However, patients pose very limited radiation risk to medical staff, family, friends, and the public due to minimal tissue penetration and emissions of the beta radiation.
  • Some general precautions should be observed, as described in the SIR-Spheres Y-90 resin microspheres Package Insert.

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