首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到18条相似文献,搜索用时 78 毫秒
1.
立体定向放射治疗胰腺癌206例   总被引:5,自引:0,他引:5  
采用立体定向伽玛射线全身治疗系统治疗206例胰腺癌(PC)患者。根据肿瘤的位置、临床靶体积、患者的身体状况与治疗目的,制定放射治疗计划及调整剂量分布。等剂量曲线55%~90%,周边照射总剂量(3000-4000)cGy,分割处方剂量(400-550)cGy,重复治疗6-8次,隔日治疗,治疗结束后3至12个月,中位随诊时间6、12个月。79例治疗前梗阻性黄疸者,消退55例(69.6%)。146例患者治疗前伴腹背部疼痛,完全消失91例(62.3%),疼痛缓解42例(28.8%)。122例复查CT或MRI,肿瘤消失29例(23.8%),缩小70例(57.4%),无变化14例(11.5%),增大9例(7.4%)。治疗3个月后在治疗部位复发者6例。75例治疗期间出现轻度副反应,但可继续完成治疗。死亡63例(30.6%)。立体定向放射治疗PC对周围组织器官伤害轻微,具有定位精确、治疗时间短、副作用小的特点,近期疗效较为满意。  相似文献   

2.
老年人晚期胰腺癌立体定向放射治疗的临床研究   总被引:4,自引:0,他引:4  
目的 探讨老年人晚期胰腺癌立体定向放射治疗的近期疗效。方法 对我院采用立体定向伽玛射线放射治疗的65例老年晚期胰腺癌患者的临床资料及随访情况进行回顾性分析。结果 放射治疗后疼痛缓解或消失53例(92.9%),体重增加≥7%者19例(29.2%),卡氏评分较入组前上升超过20分以上者28例(43.1%),临床受益反应率为61.2%;完全缓解(CR)4例(7.0%),部分缓解(PR)21例(36.8%),CR PR为25例(43.8%)。中位生存时间9.3个月。结论 老年人晚期胰腺癌的立体定向伽玛射线放射治疗近期疗效显著,是一种安全、可靠的治疗方法。  相似文献   

3.
立体定向适形放射治疗原发性肝癌的疗效分析   总被引:2,自引:0,他引:2  
立体定向适形放射治疗(3D:CRT,亦称光子刀)是治疗原发性肝癌的新方法。我院从1998年7月开展了此项治疗,现报告如下。材料和方法一、病例选择73例为住院患者,均符合原发性肝癌的诊断标准,无手术指征。①TAE PEI治疗组39例,男36例,女3例,年龄为34~70岁,平均51.8岁;肝功能ChildA级17例、B级17例、C级5例;肿瘤最大径为3.1~16.2cm(9.82±2.99)。②3D:CRT治疗组34例,男30例,女4例,年龄为22~78岁,平均48.7岁;肝功能ChildA级22例、B级11例、C级1例;肿瘤最大径为2.3~14.9cm(6.83±0.59)。两组具有可比性(各指…  相似文献   

4.
胰腺癌是一种凶险的恶性肿瘤,且发病率逐年增多。因胰腺位置深,早期症状不明显,不特异,大多数病人就诊时已属中晚期,确诊时已有局部浸润或扩散,只有10%~15%的病人有手术切除的机会。未能手术切除的病人平均生存期6个月。1年生存率仅10%左右。因此,探讨中、晚期胰腺癌非手术治疗的有效方法是提高胰腺癌生存率关键所在。我们自1999-03/2001-03用立体定向适形放射治疗不能手术的胰腺癌26例,现将结果报告如下。  相似文献   

5.
立体定向放射治疗原发性肝癌的疗效分析   总被引:1,自引:2,他引:1  
目的分析立体定向放射治疗原发性肝癌的疗效。方法采用γ射线立体定向放射治疗266例原发性肝癌患者,PTV周边照射总剂量为3200~4600eGy,分割处方剂量为300~600cGy,1次/日,6次,周,7~10次完成治疗。结果总有效率(CR+PR)为79%,无变化(SD)18%,进展(PD)3%。1年、2年、3年生存率分别为71.2%、40.3%、22.8%。本组治疗无放射诱发的肝病(RILD)发生,主要反应为上腹部不适,食欲下降。结论立体定向放射治疗原发性肝癌是一种疗效确切、副作用较小的临床治疗方法。  相似文献   

6.
立体定向放射治疗肝癌临床研究   总被引:4,自引:0,他引:4  
目的:探讨立体定向放射治疗(SRT)肝癌的临床疗效。方法:采用立体定向伽玛射线体部治疗系统治疗82例肝癌患者。根据肿瘤的位置、临床靶体积、病人的身体状况与治疗目的,制定放射治疗计划及调整剂量分布。等剂量曲线50-90%,周边照射剂量2500-4800cGy,中位剂量3286.2cGy,分割处方剂量300-800cGy,重复治疗4-12次,隔日治疗。结果:治疗结束后3至12个月 ,肝区疼痛症状缓解率为91.7%,生存质量明显提高。65例复查CT或MRI,肿瘤消失10例(15.4%),缩小33例(50.8%),无变化16例(24.6%),增大6例(9.2%),有效率为90.8%.无放射性肝炎等严重治疗反应发生。结论:SRT使肿瘤局部得到准确的高剂量照射,周围正常组织损伤较小,近期治疗效果较为理想,为肝癌患者提供了一种新的治疗方法。  相似文献   

7.
胰腺癌主要指胰外分泌腺的恶性肿瘤,发病率近年来明显上升,早期诊断困难,治疗效果也不理想,死亡率高,各国统计5年生存率仅2%-10%^[1]。现将本院2006年3月至2012年12月收治的经伽马刀立体定向放射治疗并进行系统复查的26例胰腺癌进行分析。1资料与方法 1.1一般资料 26例患者,中位年龄65.5岁(44-86岁),8例获得病理诊断,其余依据影像学、血清肿瘤标志物及PET-CT获得诊断。Karnofsky功能状态评分标准(KPS)评分50-90分,临床症状主要表现为腹痛及腰背部疼痛(15例)、食欲减退、消瘦、黄疸。临床分期I B期6例,Ⅲ期14例,Ⅳ期6例。淋巴结转移2例,远处转移6例,侵犯腹腔干或肠系膜上动脉17例。胰头癌18例,胰体尾癌8例。4例有吸烟史,6例有饮酒史,6例有高血压,1例有冠心病,5例有糖尿病,15例有体重下降。3例行剖腹探查无法切除肿瘤仅取活检明确诊断(其中1例胰头癌行术中放射治疗DT 13Gy),1例胰体尾癌术后胰头复发,1例胰头癌术后复发;获得诊断后12例曾行化学治疗。  相似文献   

8.
目的 观察立体定向放射治疗对70岁及以上早期非小细胞肺癌患者的近期疗效和放射反应。方法 对31例70岁及以上临床Ⅰ、Ⅱ期非小细胞肺癌患者行立体定向放射治疗,患者年龄70~88岁,中位年龄76岁;Ⅰ期21例,Ⅱ期10例;病灶<3 cm 14例,≥3 cm 17例。采用真空袋及体部定位架,CT模拟机定位和三维治疗计划。<3 cm病灶采用弧形照射,剂量10~15 Gy/次,共3~5次;≥3 cm病灶采用非共面适形野,剂量5~8 Gy/次,共6~12次。计划要求95%以上计划靶区(PTV)体积接受95%以上剂量。结果 近期疗效中完全缓解(CR)率为48%,部分缓解(PR)率为39%,无进展(NR)率为13%,总有效率(CR+PR)为87%。肿瘤直径<3 cm者CR率为71%,而≥3cm者CR率为29%,两者比较差异有显著性(P<0.05)。1、2年生存率分别为83.9%。52.6%。Ⅰ、Ⅱ期1年生存率分别为95%、60%,差异有显著性(P<0.05),2年生存率分别为54.5%、50.0%,两者比较差异无显著性(P>0.05)。放射性肺反应早期0级19例,Ⅰ级9例,Ⅱ级3例;晚期肺反应Ⅰ级25例,Ⅱ级6例,无Ⅲ级以上早期及晚期放射性肺反应。结论 立体定向放射治疗技术治疗老年人早期非小细胞肺癌是安全的,近期疗效满意,远期疗效有待进一步观察。  相似文献   

9.
立体定向放射治疗肝脏恶性肿瘤临床研究   总被引:4,自引:0,他引:4  
目的:探讨立体定向放射治疗(SRT)肝脏恶性肿瘤的临床疗效。方法:采用立体定向γ-射线体部治疗系统治疗112例肝脏恶性肿瘤患者,根据肿瘤的位置,临床靶体积,病人的身体状况与治疗目的,制定放射治疗计划及调整剂量分布,等剂量曲线50%-90%,周边照射剂量2500-4800cGy,中位剂量3362.6cGy,分割处方剂量300-800cGy,重复治疗4-12次,隔日治疗。结果:治疗结束后3-13个月,肝区疼痛症状缓解率为92.3%,生存质量明显提高,83例复查CT或MR,肿瘤消失13例(15.7%),缩小44例(53.0%)。无变化18例(21.9%),增大8例(9.6%),有效率为90.4%。肿瘤较小与单发病灶者治疗效果较好,曾在SRT前接受介入治疗者治疗效果优于未接受介入治疗者,结论:SRT肝脏恶性肿瘤使肿瘤局部得到准确的高剂量照射,周围正常组织损伤较小,近期治疗效果较为理想,为肝脏恶性肿瘤患者提供了一种新的治疗方法。  相似文献   

10.
肺转移瘤体部X刀立体定向放射治疗30例分析   总被引:6,自引:0,他引:6  
目的 探讨体部 X刀立体定向放射治疗转移瘤的方法和疗效。方法 采用 CT定位 ,XKB- 1型体部 X刀立体定向放射治疗系统立体定向放疗肺转移瘤 30例 ,共计 78个病灶。病灶大小 0 .4cm~ 5 .4cm,<3cm者 5 6个 ,3cm~ 5 cm者 2 0个 ,>5 cm者2个。辐射源为 6 MVX线。单次照射剂量 3Gy~ 12 Gy,总剂量 2 0 Gy~ 48Gy。结果 肿瘤消失 12灶 (15 .4% ) ,缩小 49灶 (6 2 .8% ) ,总有效率 78.2 % ;病灶 <3cm者 ,有效率为 87.5 % ,明显高于肿瘤≥ 3cm者 (P<0 .0 1;总剂量 2 0 Gy~ 30 Gy者 ,有效率为 88% ;总剂量≤ 30 Gy组中 ,肿瘤 <3cm者的有效率高于肿瘤≥ 3cm者 (P<0 .0 1,而总剂量 >30 Gy组两者无显著差异 (P>0 .0 5 )。全组病人的1、2、3年生存率分别为 6 3.3% (19/ 30 )、34 .8% (14/ 30 )和 2 1.4% (4 / 14)。结论 体部 X刀立体定向放射治疗是治疗肺转移瘤的有效方法 ,其近期疗效与转移灶大小与照射剂量相关。  相似文献   

11.
AIM:To compare transcatheter arterial chemoembolization(TACE)and 3D conformal radiotherapy(3D-CRT)with TACE monotherapy in hepatocellular carcinoma(HCC).METHODS:We searched all the eligible studies from the Cochrane Library,Pub Med,Medline,Embase,and CNKI.The meta-analysis was performed to assess the survival benefit,tumor response,and the decline inα-fetoprotein(AFP)level.According to the heterogeneity of the studies,pooled OR with 95%CI were calculated using the fixed-effects or random-effects model.An observed OR>1 indicated that the addition of 3D-CRT to TACE offered survival benefits to patients that could be considered statistically significant.Statistical analyses were performed using Review Manager Software.RESULTS:Ten studies met the criteria to perform a meta-analysis including 908 HCC participants,with 400patients in the TACE/3D-CRT combination group and508 in the TACE alone group.TACE combined with 3DCRT significantly improved 1-,2-and 3-year overall survival compared with TACE monotherapy(OR=1.87,95%CI:1.37-2.55,P<0.0001),(OR=2.38,95%CI:1.78-3.17,P<0.00001)and(OR=2.97,95%CI:2.10-4.21,P<0.00001).In addition,TACE plus 3DCRT was associated with a higher tumor response(complete remission and partial remission)(OR=3.81;95%CI:2.70-5.37;P<0.00001),and decline rates of AFP level(OR=3.24,95%CI:2.09-5.02,P<0.00001).CONCLUSION:This meta-analysis demonstrated that TACE combined with 3D-CRT was better than TACE monotherapy for patients with HCC,which needs to be confirmed by large multicenter trials.  相似文献   

12.
目的评价立体定向放疗治疗肝细胞癌伴下腔静脉癌栓的疗效。方法在66例肝细胞癌伴下腔静脉癌栓患者中,36例接受立体定向放射治疗,30例未接受放射治疗。结果 36例接受伽玛刀治疗的癌栓患者,12例(33.3%)癌栓完全缓解,10例(27.8%)部分缓解,13例(36.1%)稳定,1例(2.8%)进展。癌栓治疗有效率为61.1%,1年生存率为27.8%,中位生存期为9.8个月;未放疗的30例患者1年生存率为11.5%,中位生存期为3.5个月。多因素分析显示,放疗组病人生存情况与肝内病灶单多发有关。Child-Pugh分级是影响预后的主要因素。结论立体定向放射治疗可明显延长肝细胞癌伴有下腔静脉癌栓患者的生存期。  相似文献   

13.
IntroductionDespite advances in treatment, notably in systemic therapy, the prognosis of pancreatic adenocarcinoma (PADC) remains dismal. Stereotactic body radiotherapy (SBRT) is an emerging tool in the complex management of PADC. We review outcomes of SBRT for PADC at our institution.MethodsWe reviewed patients treated with SBRT for either unresectable PADC or locally recurrent PADC after surgery. Treatment was delivered using a robotic radiosurgery system with respiratory tracking. The median prescribed dose was 30 Gy (30–35 Gy), delivered in 5–6 fractions. Toxicities were reported as per CTCAE v4.0. Survival was estimated using the Kaplan–Meier method.ResultsBetween October 2010 and March 2016, 21 patients were treated at our institution. The median follow-up was 7 months (range: 1–28). The 1-year local control rate was 57%. The 1-year overall survival was 25% for locally advanced patients and 67% for those with local recurrences (p = 0.27). Eighty percent of cancer related deaths were due to metastatic progression. Five patients (24%) had Grade I–II gastrointestinal acute toxicity; one patient had fatal gastrointestinal bleeding 6 months after SBRT.ConclusionIn PADC, fractionated SBRT dose schedules near 30 Gy may strike the best balance of local control and bowel toxicity. More work is required to integrate pancreatic SBRT with modern systemic therapy.  相似文献   

14.
目的 研究三维适形放射治疗原发性肝癌患者发生放射性肝损伤(RILD)的相关危险因素。方法 对2009年3月至2015年12月期间收治的三维适形放射治疗的原发性肝癌患者的临床资料进行归纳整理,以假设检验筛选相关危险因素,并进行多因素非条件Logistic回归分析。结果 本组纳入研究的原发性肝癌患者39例,在完成放射治疗后发生RILD 14例(35.9%);各类别单因素的假设检验提示肝癌患者的年龄和肝功能CTP评分与放疗后RILD的发生相关(P<0.05);进一步的非条件多因素Logistic回归分析显示,年龄≥60岁(OR:15.72,P=0.020)和肝功能CTP评分≥6(OR:24.95,P=0.005)是三维适形放射治疗原发性肝癌后发生RILD的2个独立危险因素。结论 通过对三维适形放射治疗原发性肝癌患者发生RILD的研究,初步识别了肝癌患者接受放疗后发生RILD的相关危险因素,为日后制定治疗计划时减少RILD的发生,或建立适当的干预措施提供了科学依据。  相似文献   

15.
体定向放射治疗早期非小细胞肺癌(附36例报告)   总被引:1,自引:0,他引:1  
对 36例临床 ~ 期非小细胞肺癌患者行立体定向放射治疗 ,病灶 <3cm者采用弧形照射 ,剂量 10~15 Gy/次 ,共 3~ 5次 ;>3cm者采用非共面适形野 ,剂量 5~ 8Gy/次 ,共 6~ 12次。结果 :近期完全缓解 ( CR)率为 5 3% ,部分缓解 ( PR)率为 36 % ,总有效率 ( CR PR)为 89%。肿瘤直径 <3cm者 CR率为 76 .5 % ,>3cm者为 31.5 % ,差异有显著意义 ( P <0 .0 5 ) ;其 1、 2年生存率分别为 83.3%、 5 2 .4 % ; 期、 期 1年生存率分别为 96 %、 5 4 .5 % ,差异有显著意义 ( P <0 .0 1)。放射性肺反应早期多为 0级 ,晚期肺反应多为 1级。说明立体定向放射治疗技术治疗早期非小细胞肺癌是安全、有效的 ,近期疗效满意 ,远期疗效有待进一步观察  相似文献   

16.
17.
BACKGROUND: The purpose of this study was to determine the potential role of three-dimensional (3-D) conformal radiotherapy (RT) in treatment of unresectable hepatocellular carcinoma (HCC). METHODS: Thirteen patients were included in this study, which was conducted between 1993 and 1996. Nine patients (group A) were treated with 3-D conformal RT alone because of main portal vein thrombosis, inferior vena cava thrombosis, obstructive jaundice and failure of previous transcatheter arterial chemoembolization (TACE) to control the disease. The remaining four patients (group B) were treated with a combination of TACE and 3-D conformal RT. RESULTS: The greatest dimension of the main tumour in the whole group of patients ranged from 6 to 25 cm (median 15 cm). The radiation dose ranged from 40 to 60 Gy. The tumour response was evaluated by computed tomography scans of the liver 6-8 weeks after completion of radiotherapy. Partial response was observed in 58% of the patients (seven of 12) and minimal response in another 25% of patients (three of 12). One patient could not be evaluated because of the development of hepatic failure 1 month after completion of RT. All patients in group B lived for more than 1 year (range 16-40 months). In group A, one patient who had a large tumour (11 x 10 x 21 cm) with portal vein thrombosis was converted to become resectable after 45 Gy of radiation. The resection specimen revealed no residual cancer cells. This patient is alive longer than 15 months after treatment without the evidence of disease. CONCLUSIONS: Our experience indicates that HCC is more radiosensitive than it was traditionally expected. Three-dimensional reconstruction of tumour and surrounding organs helps to avoid excessive exposure of the liver and adjacent organs to RT and makes it a safer treatment modality for unresectable HCC. Our preliminary data show promise and are worthy of further study to explore the potential role of radiotherapy in the treatment strategy for HCC at various stages of involvement.  相似文献   

18.

Background

To report the results of a phase I/II study of helical IMRT-based stereotactic body radiotherapy (SBRT) for hepatocellular carcinoma (HCC).

Methods

Eligibility included Child–Turcotte–Pugh class A or B, ≤3 lesions, and cumulative tumor diameter ≤6?cm. Dose was escalated from 36?Gy to 60?Gy delivered in 4 fractions. Grade ≥3 gastrointestinal toxicities (CTCAE v3.0) or radiation-induced liver disease defined dose-limiting toxicity (DLT).

Results

Thirty-two patients were enrolled: seven in dose levels 1–2 (36–44?Gy) and 25 in levels 3–4 (42–60?Gy). Failures included 1 local, 14 outfield intrahepatic, 2 distant, 1 concurrent local and outfield, 1 concurrent outfield and distant, and 1 concurrent local, outfield, and distant. Nine had grade 3 hematologic toxicities and 5 had grade 2 hepatic toxicities; no patient experienced DLT. Two-year local control (LFFS), outfield intrahepatic control (OutFFS), and overall survival (OS) rates were 80.9%, 46.7%, and 81.3%, respectively. Dose levels 3–4 and pre-radiotherapy multi-segment recurrence were independent prognostic factors for LFFS and OutFFS, respectively. Two-year LFFS, OutFFS, and OS were significantly higher for patients who were treated with dose-levels 3/4 for tumor(s) involving single segment compared with the rest of the patients.

Conclusions

Helical IMRT-based SBRT was safe and effective, and patients with multi-segment recurrences prior to SBRT need to be closely followed.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号