目的探讨体部伽玛刀立体定向放射治疗技术联合肝动脉化疗栓塞(transcatheter arterial chemoembolization,TACE)治疗原发性肝癌(HCC)伴门静脉癌栓(PVTT)的临床效果和安全性。方法收集2010年1月至2016年3月收治的64例HCC伴PVTT患者,按治...目的探讨体部伽玛刀立体定向放射治疗技术联合肝动脉化疗栓塞(transcatheter arterial chemoembolization,TACE)治疗原发性肝癌(HCC)伴门静脉癌栓(PVTT)的临床效果和安全性。方法收集2010年1月至2016年3月收治的64例HCC伴PVTT患者,按治疗方法的不同将其分为观察组( n =32)与对照组( n =32)。对照组单纯接受TACE治疗;观察组在对照组的基础上联合体部伽玛刀立体定向放疗,以50%~70%等剂量曲线覆盖靶区边缘,分割照射剂量3~5 Gy·次^-1 ,5 次·周^-1 ,共治疗7~12次,总照射剂量30~50 Gy。放疗结束1~3个月后复查腹部增强MRI或增强CT评价肿瘤情况,比较2组患者的近期和远期疗效及不良反应。结果观察组和对照组近期总有效率(CR+PR)分别为78.13%(25/32)、50.00%(16/32),2组比较差异有统计学意义( P =0.019)。2组均完成2年随访,其总生存时间为7~51个月,中位生存时间20个月;观察组和对照组生存期分别为(14.87± 2.12 )、(9.93±1.71)个月;观察组1、2年总生存率分别为65.6%和37.5%,对照组为37.5%和9.4%,2组比较差异有统计学意义( P <0.05或 P <0.01)。2组均未见严重不良反应。结论体部伽玛刀立体定向放疗联合TACE治疗HCC伴PVTT安全、有效,可获得较好的肿瘤控制率,提高远期生存率,且疗效优于单纯TACE治疗。展开更多
AIM: To evaluate the efficacy and toxicity of stereotactic body radiotherapy using Cyber Knife for locally advanced unresectable and metastatic pancreatic cancer.METHODS: From June 2010 to May 2014,25 patients with lo...AIM: To evaluate the efficacy and toxicity of stereotactic body radiotherapy using Cyber Knife for locally advanced unresectable and metastatic pancreatic cancer.METHODS: From June 2010 to May 2014,25 patients with locally advanced unresectable and metastatic pancreatic cancer underwent stereotactic body radiotherapy.Nine patients presented with unresectable locally advanced disease and 16 had metastatic disease.Primary end-points of this study were overall survival,relief of abdominal pain,and toxicity.RESULTS: Fourteen patients were treated with a total dose of 30-36 Gy in three fractions and the remainder with 40-48 Gy in four fractions.Median follow-up was 11 mo(range: 2-25 mo).The median survival duration calculated from the time of stereotactic body radiotherapy for the entire group,the locally advanced group,and the metastatic group was 9.0 mo,13.5 mo,and 8.5 mo,respectively.Overall survival was 37% and 18% at one and two years,respectively.Abdominal pain relief was achieved within 2 wk of completing radiotherapy in the patients who received successful palliation(13 of 20 patients had significant pain).Five patients(20%) had grade 1 nausea,and one(4%) had grade 2 nausea.No acute grade 3+ toxicity was seen.CONCLUSION: Stereotactic body radiotherapy using the Cyber Knife system is a promising,noninvasive,palliative treatment with acceptable toxicity for locally advanced unresectable and metastatic pancreatic cancer.展开更多
胰腺癌是严重威胁人类健康的疾病之一,但是针对其的有效治疗方法依然非常有限.本文概述了国内全身伽玛刀治疗中晚期胰腺癌的原理和疗效等,简要描述了国外类似的体部立体定向放射治疗(stereotactic body radiation therapy,SBRT)中晚期...胰腺癌是严重威胁人类健康的疾病之一,但是针对其的有效治疗方法依然非常有限.本文概述了国内全身伽玛刀治疗中晚期胰腺癌的原理和疗效等,简要描述了国外类似的体部立体定向放射治疗(stereotactic body radiation therapy,SBRT)中晚期胰腺癌的情况.总之,国内用全身伽玛刀治疗胰腺癌提高了患者的生存率,不良反应小,对肿瘤进展有较好的控制,这主要是根据伽玛刀的原理提高了病灶区的吸收剂量.尽管国外对与全身伽玛刀作用类似的SBRT治疗的优势仍存在争议,但是他们也逐渐认识到了使用SBRT治疗胰腺癌的一些优点.展开更多
In order to treat malignant tumors in human body, a stereotactic gamma-ray whole-body therapeutic system has been developed. This system is a typical large mechatronics treatment machine. In this paper, its main worki...In order to treat malignant tumors in human body, a stereotactic gamma-ray whole-body therapeutic system has been developed. This system is a typical large mechatronics treatment machine. In this paper, its main working principles and characteristics are introduced. This system comprises a special gallows frame with an open vertical structure, a changeable collimator device by which the size of convergence center can be chosen, and a 3D treatment couch. A computer brings the couch to target position automatically. Therefore precise and dynamic rotary converging therapy for tumors located anywhere in the body has been realized. The system's performance has been proved in practice, which includes good curative effect, reliable automation, and safe and secure operation.展开更多
文摘目的探讨体部伽玛刀立体定向放射治疗技术联合肝动脉化疗栓塞(transcatheter arterial chemoembolization,TACE)治疗原发性肝癌(HCC)伴门静脉癌栓(PVTT)的临床效果和安全性。方法收集2010年1月至2016年3月收治的64例HCC伴PVTT患者,按治疗方法的不同将其分为观察组( n =32)与对照组( n =32)。对照组单纯接受TACE治疗;观察组在对照组的基础上联合体部伽玛刀立体定向放疗,以50%~70%等剂量曲线覆盖靶区边缘,分割照射剂量3~5 Gy·次^-1 ,5 次·周^-1 ,共治疗7~12次,总照射剂量30~50 Gy。放疗结束1~3个月后复查腹部增强MRI或增强CT评价肿瘤情况,比较2组患者的近期和远期疗效及不良反应。结果观察组和对照组近期总有效率(CR+PR)分别为78.13%(25/32)、50.00%(16/32),2组比较差异有统计学意义( P =0.019)。2组均完成2年随访,其总生存时间为7~51个月,中位生存时间20个月;观察组和对照组生存期分别为(14.87± 2.12 )、(9.93±1.71)个月;观察组1、2年总生存率分别为65.6%和37.5%,对照组为37.5%和9.4%,2组比较差异有统计学意义( P <0.05或 P <0.01)。2组均未见严重不良反应。结论体部伽玛刀立体定向放疗联合TACE治疗HCC伴PVTT安全、有效,可获得较好的肿瘤控制率,提高远期生存率,且疗效优于单纯TACE治疗。
文摘AIM: To evaluate the efficacy and toxicity of stereotactic body radiotherapy using Cyber Knife for locally advanced unresectable and metastatic pancreatic cancer.METHODS: From June 2010 to May 2014,25 patients with locally advanced unresectable and metastatic pancreatic cancer underwent stereotactic body radiotherapy.Nine patients presented with unresectable locally advanced disease and 16 had metastatic disease.Primary end-points of this study were overall survival,relief of abdominal pain,and toxicity.RESULTS: Fourteen patients were treated with a total dose of 30-36 Gy in three fractions and the remainder with 40-48 Gy in four fractions.Median follow-up was 11 mo(range: 2-25 mo).The median survival duration calculated from the time of stereotactic body radiotherapy for the entire group,the locally advanced group,and the metastatic group was 9.0 mo,13.5 mo,and 8.5 mo,respectively.Overall survival was 37% and 18% at one and two years,respectively.Abdominal pain relief was achieved within 2 wk of completing radiotherapy in the patients who received successful palliation(13 of 20 patients had significant pain).Five patients(20%) had grade 1 nausea,and one(4%) had grade 2 nausea.No acute grade 3+ toxicity was seen.CONCLUSION: Stereotactic body radiotherapy using the Cyber Knife system is a promising,noninvasive,palliative treatment with acceptable toxicity for locally advanced unresectable and metastatic pancreatic cancer.
文摘胰腺癌是严重威胁人类健康的疾病之一,但是针对其的有效治疗方法依然非常有限.本文概述了国内全身伽玛刀治疗中晚期胰腺癌的原理和疗效等,简要描述了国外类似的体部立体定向放射治疗(stereotactic body radiation therapy,SBRT)中晚期胰腺癌的情况.总之,国内用全身伽玛刀治疗胰腺癌提高了患者的生存率,不良反应小,对肿瘤进展有较好的控制,这主要是根据伽玛刀的原理提高了病灶区的吸收剂量.尽管国外对与全身伽玛刀作用类似的SBRT治疗的优势仍存在争议,但是他们也逐渐认识到了使用SBRT治疗胰腺癌的一些优点.
文摘In order to treat malignant tumors in human body, a stereotactic gamma-ray whole-body therapeutic system has been developed. This system is a typical large mechatronics treatment machine. In this paper, its main working principles and characteristics are introduced. This system comprises a special gallows frame with an open vertical structure, a changeable collimator device by which the size of convergence center can be chosen, and a 3D treatment couch. A computer brings the couch to target position automatically. Therefore precise and dynamic rotary converging therapy for tumors located anywhere in the body has been realized. The system's performance has been proved in practice, which includes good curative effect, reliable automation, and safe and secure operation.
