title: Laser projection system for radiotherapy and CT-guided biopsy.
abstract: We devised a laser projection system combined with a CT scanner and radiotherapy treatment planning computer (CT stimulator). The irradiation field can be projected over a range of 180 degrees on the skin of a patient lying on the CT couch. For CT-guided biopsy, the system can project the skin entry point and needle direction.
authors.affiliation: Department of Radiology, Kyoto University Hospital, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nagata
authors.forename: T
authors.initials: T
authors.lastname: Nishidai
authors.forename: M
authors.initials: M
authors.lastname: Abe
authors.forename: M
authors.initials: M
authors.lastname: Hiraoka
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
authors.forename: K
authors.initials: K
authors.lastname: Fujiwara
authors.forename: K
authors.initials: K
authors.lastname: Okajima
mesh_terms: D001707:Biopsy, Needle / Q000379:methods*; D003201:Computers; D006801:Humans; D007834:Lasers; D011880:Radiotherapy Planning, Computer-Assisted; D013679:Technology, Radiologic / Q000295:instrumentation; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*