title: Dosimetry of radioactive gold grains for the treatment of choroidal melanoma.
abstract: The dosimetry of small permanent gold grain implants for treating choroidal melanoma has been studied. A means of planning the source configuration required to deliver a desired minimum dose to a tumour has been developed. The interaction of the variable parameters, source activity, number of sources used, geometrical arrangement, and implant diameter, within the physical limitations imposed by the eye and the practical limitations occurring in clinical practice, are discussed.
mesh_terms: D001918:Brachytherapy / Q000379:methods*; D002830:Choroid Neoplasms / Q000532:radiotherapy*; D006050:Gold Radioisotopes / Q000627:therapeutic use; D006801:Humans; D008545:Melanoma / Q000532:radiotherapy*; D010347:Patient Care Planning / Q000379:methods; D011879:Radiotherapy Dosage
chemical_list: D006050:Gold Radioisotopes