title: Estimation of the radiation dose delivered to any point outside the target volume per patient treated with external beam radiotherapy.
abstract: The methodology we have developed to study dose distribution outside the target volume during external beam radiotherapy allows us to determine the dose received by the patient arising from leakage radiation and scattered radiation from both the head of the treatment machine and from the treatment room. It also allows us to evaluate the dose due to photon scattering in the patient by means of a dedicated 3-D algorithm permitting computations for the whole body of the patient and taking into account height, sex and anatomical data at the time of the treatment, dosimetric data and lung heterogeneity parameters. This methodology offers solid criteria for recommendations concerning radiation protection.
authors.affiliation: Service de Physique, Institut Gustave-Roussy, Villejuif, France.
authors.forename: I
authors.initials: I
authors.lastname: Diallo
authors.forename: A
authors.initials: A
authors.lastname: Lamon
authors.forename: A
authors.initials: A
authors.lastname: Shamsaldin
authors.forename: E
authors.initials: E
authors.lastname: Grimaud
authors.forename: F
authors.initials: F
authors.lastname: de Vathaire
authors.forename: J
authors.initials: J
authors.lastname: Chavaudra
mesh_terms: D000465:Algorithms; D001943:Breast Neoplasms / Q000532:radiotherapy; D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D005260:Female; D006258:Head and Neck Neoplasms / Q000532:radiotherapy; D006801:Humans; D008297:Male; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011835:Radiation Protection; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D011882:Radiotherapy, High-Energy; D012542:Scattering, Radiation
chemical_list: D003037:Cobalt Radioisotopes