Use of a CT simulator in radiotherapy treatment planning for ... | 合法醫療器材資訊網

由MHiraoka著作·1994·被引用37次—ACTsimulator(CT-S)isareal-time,CT-linked,3-Dtreatmentplanningsystem,whichconsistsofaCTscanner,amulti-imagedisplay,atreatmentplanning ...

A CT simulator (CT-S) is a real-time, CT-linked, 3-D treatment planning system, which consists of a CT scanner, a multi-image display, a treatment planning device with real-time visual optimization, and a laser beam projector. This system was clinically evaluated in 339 Stage 0, I and II breast cancers in 337 patients who received breast conserving therapy. Following quadrantectomy or wide excision with complete axillary dissection, a total of 50 Gy was delivered to the ipsilateral breast using 60Co gamma-rays. In patients with involved surgical margins, boost electron irradiation was also given. Treatment planning could be accomplished within 40-50 min using the CT-S. The parameters for the tangential portals could be optimized for each patient, and the wedge filters and the electron energy for boost irradiation could be appropriately selected. The incidence of moist desquamation and depigmentation at the areola wa...