Radiation Emission from Patients Treated with Selective Hepatic Radioembolization Using Yttrium-90 Microspheres: Are Contact Restrictions Necessary?

All patients treated with 90Y hepatic radioembolization to a maximum administered activity of 5.14 GBq and maximum dose rate of 10 uSv/h were releasable without contact restrictions according to the NRC contact scenario. Patients who receive more than 3 GBq during infusion may require dose rate measurement if more restrictive contact scenarios are considered.