【摘 要】
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@@ Purpose:In case of prostate 3D conformal radiotherapy(3DCRT),the objectives were：to assess the predictive capabilities of random forest(RF)to predict late rectal toxicity;to compare the performance
【机 构】
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Department of Radiation Physics,Shandong Cancer Hospital and Institute,Jinan,PR China Laboratory of
【出 处】
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中国抗癌协会肿瘤放射治疗专业委员会学术大会、中美放射肿瘤协会第三届学术会议、2012济南国际放射肿瘤学论坛
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@@ Purpose:In case of prostate 3D conformal radiotherapy(3DCRT),the objectives were：to assess the predictive capabilities of random forest(RF)to predict late rectal toxicity;to compare the performance of RF with respect to the classical NTCP models．Materlals and methods:A total of 437 patients(pts)received 3DCRT for prostate cancer to a median total dose of 78 Gy(range：70 to 80 Gy),2Gy/fraction．Pts were selected based on the availability of the dose-volume histograms(DVHs)．Median age was 67 years(45-78)．History of abdominal or pelvic surgery,anticoagulant therapy(ACT)and diabetes Were observed in 30％,15％and 6％of pts,respectively．
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