title: Radiotherapy technique integrates MRI into CT.
abstract: The 1970s saw the introduction of computed tomography, which enabled soft tissue anatomy to be seen. Today simulation of therapeutic fields by x-ray is augmented by radiotherapy treatment planning using CT data. The 1980s brought magnetic resonance imaging with superior soft tissue contrast. This article describes a technique correlating three-dimensional MRI/CT data sets used routinely in treatment planning of tumors in the head.
authors.affiliation: Lawrence Berkeley Laboratory, Berkeley, Calif.
authors.forename: J W
authors.initials: JW
authors.lastname: Judnick
authors.forename: M L
authors.initials: ML
authors.lastname: Kessler
authors.forename: T
authors.initials: T
authors.lastname: Fleming
authors.forename: P
authors.initials: P
authors.lastname: Petti
authors.forename: J R
authors.initials: JR
authors.lastname: Castro
mesh_terms: D001932:Brain Neoplasms / Q000532:radiotherapy; D005910:Glioma / Q000532:radiotherapy; D006258:Head and Neck Neoplasms / Q000532:radiotherapy; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008961:Models, Structural; D011880:Radiotherapy Planning, Computer-Assisted; D014057:Tomography, X-Ray Computed