目的 探讨应用腓肠肌肌皮瓣修复膝关节周围软组织肉瘤广泛切除术软组织缺损的临床疗效.方法 回顾性分析2009年3月至2012年5月有完整随访资料的膝关节周围软组织肉瘤患者的临床资料.共收治12例膝关节周围软组织肉瘤患者,男5例,女7例,年龄43～82岁,中位年龄58岁,均为膝关节周围软组织肉瘤,其中初发6例,复发6例.病理：恶性纤维组织细胞瘤5例,滑膜肉瘤2例,脂肪肉瘤2例,纤维肉瘤1例,透明细胞肉
目的 探讨分区背阔肌肌皮瓣的解剖基础以及应用分区背阔肌肌皮瓣修复躯干部软组织肉瘤组织缺损的可行性和实用性.方法 1：对15具成人尸体进行背阔肌的血管神经解剖，按照血管神经的分支分布进行背阔肌分区.2：对25例躯干部软组织肉瘤广泛切除手术后组织缺损患者，应用内上区或外下区背阔肌肌皮瓣移植修复皮肤和肌肉缺损.结果 1：背阔肌内的主要血供来源于胸背动脉，胸背动脉内、外侧支分叉点距离肩胛下角外及上方分别平
目的：探讨肢体长骨骨干转移瘤外科治疗内固定方式的要求与实践.方法：2007年1月-2010年12月明确诊断的45例四肢长骨骨干转移瘤患者,全部病例采用肿瘤瘤段切除、骨水泥塑形髓内钉内固定手术治疗.结果：全组病例无术中死亡,术后无感染.45例患者随访10-56个月,平均28个月.2例出现肿瘤复发,无明显功能障碍.所有患者术后疼痛得到明显缓解,Enneking功能状态评分：功能优75％,中18.5％,
Purpose Clinical situations arise where there is incomplete backscatter which complicates dosimetry of superficial x-rays beams.A calculation algorithm was developed for evaluating the change of backs
Purpose:Collapsed-cone convolution/superposition(CCCS) dose calculation algorithm is typically used for IMRT dose calculation in most commercial treatment planning systems(TPS).The purpose of this pap
Purpose:To evaluate a Hybrid IMRT/VMAT technique which combined intensity modulated radiotherapy(IMRT)and volumetricmodulated arc therapy(VMAT)as a treatment option for the radiotherapy of nasopharyng
Purpose:Treatment plans with non-coplanar beams have shown promise for the better dose avoidance of normal organs,which is favorable for stereotactic body radiation therapy(SBRT).The purpose of this p
Purpose:To develop and evaluate an effective real-time tracking and gating radiotherapy based on dMLC for mobile tumor.Methods:A novel technology has been proposed for mobile tumor radiotherapy,where
Purpose:To develop a pencil beam algorithm(PBA)for dose calculation of proton beams in both homogeneous and heterogeneous media.Methods:The proton PBA consisted of the integral depth-dose and the off-
Purpose:In IMRT QA,plan quality evaluation is made based on pass rate under preset acceptance criteria,mostly using gamma-values.This method is convenient but,its result highly depends on what the acc