Release criteria for patients having undergone radionuclide therapy and criteria for their crossing the state border of the Russian Federation.
By means of a conservative dosimetry model, the values of operational radiological criteria for patients released from hospital--residual activity in a body and dose rate near the patient's body--are substantiated based on the effective dose limit of 5 mSv for persons helping the patient or living with him and 1 mSv for other adults and children. Two sets of operative criteria for radionuclides (125)I, (131)I, (153)Sm and (188)Re used in Russia for radionuclide therapy were derived. Release criteria for (125)I well differ from such values in other countries because in this work absorption of (125)I low-energy photon radiation in the patient was taken into account. When a patient having undergone radionuclide therapy crosses the frontier of Russia, high-sensitivity devices for radiation control at the custom can detect the patient. A simplified radiological assessment of the patient was suggested aimed at provision of radiation safety for patient companions in transport.
Protection Laboratory, Research Institute of Radiation Hygiene, Mira St 8, 197101, St Petersburg, Russia. ir_zv@bk.ru
I
I
Zvonova
M
M
Balonov
V
V
Golikov
D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000532:radiotherapy / Q000556:secondary; D004641:Emigration and Immigration; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use*; D010351:Patient Discharge; D011835:Radiation Protection; D016499:Radioimmunotherapy; D011877:Radionuclide Imaging; D011879:Radiotherapy Dosage; D012426:Russia; D013959:Thyroid Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy
D007457:Iodine Radioisotopes