title: [Modern radiation therapy].
abstract: For decades, radiation therapy has constituted one of the main forms of therapy for cancer, and has undergone rapid technical development. New techniques in radiotherapy make it possible to treat a tumor with larger doses than before, while at the same time reducing damage to healthy tissues. The development in imaging techniques has allowed a more precise delimitation of tumors and monitoring of the efficacy of therapy. Three-dimensional tumor delimitation and dose calculation have long been the standard in radiation therapy. Four-dimensional and functional imaging in defining the target area for radiation therapy is becoming part of routine radiotherapy.
authors.affiliation: Docrates-klinikka, Tehtaankatu 28, 00150 Helsinki.
authors.forename: Mauri
authors.initials: M
authors.lastname: Kouri
authors.forename: Aki
authors.initials: A
authors.lastname: Kangasmäki
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D011878:Radiotherapy / Q000639:trends*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted