title: The role of CT scanning in the radiotherapy planning of pelvic tumors.
abstract: In order to assess the place of computed tomography (CT) in radiotherapy planning, the tumor volumes are localized both by conventional techniques and with CT scanning under conditions simulating the radiotherapy. A comparison between the two methods has been made in a group of 55 patients with tumors in the pelvis. CT scanning was found to be of such value in 64% of the treatment series, in improving both the accuracy of localization of the target volume (48% of the patients) and the calculation of the dose distribution (31% of the patients) that its use is recommended during the radiotherapy planning of pelvic tumors.
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010347:Patient Care Planning / Q000379:methods*; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D011446:Prospective Studies; D011879:Radiotherapy Dosage; D014057:Tomography, X-Ray Computed