title: Implementation and clinical use of portal imaging.
authors.affiliation: Department of Radiology, Northwestern University Medical School, Chicago, IL 60611, USA.
authors.forename: C L
authors.initials: CL
authors.lastname: Thomason
mesh_terms: D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009862:Online Systems; D019047:Phantoms, Imaging; D011785:Quality Assurance, Health Care; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D011881:Radiotherapy, Computer-Assisted / Q000295:instrumentation* / Q000379:methods* / Q000592:standards; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*