title: Functional imaging in treatment planning in radiation therapy: a review.
abstract: The remarkable technical developments obtained in radiation oncology have resulted in an increasing use of image-based treatment planning in radiation therapy for three-dimensional and intensity modulated radiation therapy, stereotactic irradiation and image-guided brachytherapy. There has been increased use of computer-based record and verify systems as well as electronic portal imaging to enhance treatment delivery. From the data presented it is evident that PET scanning and other functional imaging techniques play a major role in the definition of tumor extent and staging of patients with cancer. The recent introduction of a combined CT and PET scanner will substantially simplify image acquisition and treatment planning.
authors.affiliation: Department of Radiation Oncology, Washington University Medical Center, St. Louis, MO, USA. perez@radonc.wustl.edu
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Perez
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Bradley
authors.forename: Clifford K S
authors.initials: CK
authors.lastname: Chao
authors.forename: Perry W
authors.initials: PW
authors.lastname: Grigsby
authors.forename: Sasa
authors.initials: S
authors.lastname: Mutic
authors.forename: Robert
authors.initials: R
authors.lastname: Malyapa
mesh_terms: D001918:Brachytherapy; D005260:Female; D006258:Head and Neck Neoplasms / Q000532:radiotherapy; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008175:Lung Neoplasms / Q000532:radiotherapy; D008198:Lymph Nodes / Q000528:radiation effects; D008297:Male; D011880:Radiotherapy Planning, Computer-Assisted; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed; D002583:Uterine Cervical Neoplasms / Q000532:radiotherapy