CT simulator: A new 3-D planning and simulating system for radiotherapy: Part 2. clinical application
1990
Abstract We have performed radiotherapy treatment planning (RTP) with a new system called CT simulator in 72 patients. With the system, RTP is performed with the patient lying on the CT couch within a short period of time. All the CT images scanned were immediately transported to the multi-image monitors and to the treatment planning device. Radiotherapy treatment planning could be performed not only at the beam center but also at any CT slice. Using a laser-beam field projector, field outlines were drawn over the patient's skin. In clinical use, the system was useful for cases in which a target lies adjacent to dose limiting organs, cases with a complicated target shape, cases with complicated dose distribution curves, and cases treated with tangential fields. This system enables us to make optimum use of CT information and to make accurate 3-dimensional treatment planning programs.
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