螺旋断层放射治疗系统的乳腺癌调强放射治疗

照射复杂的肿瘤,有着无与伦比的精度和均匀性

TomoHelical Treatment Delivery, Accuray’s flagship helical delivery mode available for the Radixact® and TomoTherapy® Systems, sets the gold standard for the treatment of complex breast tumors.

Patient in need of breast Intensity-modulated radiation therapy (IMRT) with the Radixact System and Tolmohelican Treatment Delivery

推广“患者为先”的治疗理念,与世界上其他系统截然不同

图像引导调强放射治疗 (IG-IMRT),借助独特的超快多叶光栅,实现一流的临床工作流程与高度适形和均匀性的放疗。Radixact® 系统在照射肿瘤的同时可避开正常组织。

超长的放疗照射野,高度适形的剂量雕刻

螺旋断层放射治疗系统拥有连续旋转机架、连续运动治疗床和超快多叶光栅。该技术可以对更长的放疗照射野,执行调强放射治疗 (IMRT)。独有的二元气动光栅有着业界最快的叶片运动速度,相比其他调强放射治疗技术,可以生成更多的调强级别。Bortfeld 和 Webb 都已经证明,与其他调强放射治疗技术(静态和旋转调强)相比,螺旋断层放射治疗系统有着最佳的剂量雕刻能力,可以实现高度适形和均匀的剂量分布1。除此之外,螺旋断层放射治疗系统的优势在不同临床适应症的治疗方案比较结果中展现无遗。2-12

简便与速度

  • 业内最长的放疗照射野:消除了多个等中心点和照射野衔接所需要花费的计划制定和投照时间,避免导致热点和冷点的产生。
  • 同时照射多个靶区。
  • 3D 适形放射治疗和调强放射治疗模式: 常规病例和复杂病例有着同样简单的治疗计划过程。

超高的精度和优秀的剂量跌落

  • 360 度照射不仅可以提供高度适形、均匀的剂量分布,而且可以最大程度地减少周围正常组织的受照剂量。
  • TomoEDGE 动态铅门可以在头尾方向动态适形靶区,从而使剂量急剧跌落,以便精准地避开正常的组织,并提高病人治疗通量。
  • 业内最快的叶片运动速度,与其他调强放射治疗技术相比,可以生成更多的调强级别。

常见和复杂乳腺癌的理想临床治疗方案

The Radixact and TomoTherapy systems offer TomoHelical delivery, providing the flexibility to treat a spectrum of cancer cases from a single platform.

根据患者乳腺癌的情况调整放射治疗方案:

TomoTherapy®系统的作用

Roberto Orecchia 教授
欧洲肿瘤研究所(意大利,米兰)的学科主任

TomoEDGE™ 动态铅门

采用TomoEDGE 动态铅门,预计总的平均治疗时间为 10-15 分钟*

*包括设置、完成三维影像和平均出束时间(4.5 分钟)。总的治疗时间为近似值,根据安科锐的内部测试数据获得。临床情况不同,时间也会有所不同。

Accuray Radixact

“优势在于,更好的适形性可减少危及器官,如同侧肺和心脏的吸收剂量。可以更好实现靶区覆盖,包括区域淋巴结的覆盖,而不会出现照射野衔接的问题。”

Early experience of tomotherapy-based intensity-modulated radiotherapy for breast cancer treatment.
Clin Oncol (R Coll Radiol). 2009 May; 21(4):294-301.
O’Donnell H, Cooke K, Walsh N, Plowman PN.

临床示例

References:

1. Bortfeld T and Webb S. “Single-Arc IMRT?” Phys. Med. Biol. 2009; 54: N9-N20 – https://doi.org/10.1088/0031-9155/54/1/N02

H&N:

2. Van Gestel D. et al. “Fast Helical Tomotherapy in a head and neck cancer planning study: is time priceless?” Radiation Oncology. 2015; 10: 261 – https://doi.org/10.1186/s13014-015-0556-8

3. Van Gestel D. et al. “RapidArc, SmartArc, and TomoDH compared with classical step and shoot and sliding window intensity modulated radiotherapy in oropharyngeal cancer treatment plan comparison.”  Radiation Oncology. 2013; 8:37 – https://doi.org/10.1186/1748-717X-8-37

4. Vernat S.S. et al. “Intensity Modulated Arc Therapy in Bilaterally Irradiated Head and Neck Cancer: A Comparative and Prospective Multicenter Planning Study.” Cancer Invest. 2014; 32(5): 159-167

5. Chen A.M. et al. “Intensity-modulated radiotherapy for nasopharyngeal carcinoma: improvement of the therapeutic ratio with helical tomotherapy vs segmental multileaf collimator-based techniques.” The British Journal of Radiology. 2012; 85: e537-543 – https://doi.org/10.1259/bjr/23807619

6. Broggi S. et al. “Static and rotational intensity modulated techniques for head-neck cancer radiotherapy: a planning comparison.” Phys Med. 2014; 30(8): 973-979

Breast:

7. Nagai A. et al. “Intensity-modulated radiotherapy using two static ports of TomoTherapy for breast cancer after conservative surgery: dosimetric comparison with other treatment methods and 3-year clinical results.” Journal of Radiation Research. 2017; Feb 23: 1-8 – https://doi.org/10.1093/jrr/rrw132

8. Han E.Y. et al. “Estimation of the risk of secondary malignancy arising from whole-breast irradiation: comparison of five radiotherapy modalities, including TomoHDA” Oncotarget. 2016; 7(16): 22960-9 – https://doi.org/10.18632/oncotarget.8392

9. Michalski A. et al. “A dosimetric comparison of 3D-CRT, IMRT, and static TomoTherapy with an SIB for large and small breast volumes.” Medical Dosimetry. 2014; 39: 163-168

CSI:

10. Sugie C. et al. “Craniospinal irradiation using helical TomoTherapy: evaluation of acute toxicity and dose distribution.” Technol Cancer Res Treat. 2011; 10: 187-195 – https://doi.org/10.7785/tcrt.2012.500194

Brain:

11. Levegrun S. et al. “Helical TomoTherapy for whole-brain irradiation with integrated boost to multiple brain metastases: evaluation of dose distribution characteristics and comparison with alternative techniques.” International Journal of Radiation Oncology Biology Physics. 2013; 86: 734-742

Lung:

12. Chi A. et al. “Critical structure sparing in stereotactic ablative radiotherapy for central lung lesions: helical tomotherapy vs. volumetric modulated arc therapy.” PloS one. 2013; 8(4): e59729 – https://doi.org/10.1371/journal.pone.0059729

Radixact 与 TomoTherapy 都可以用于治疗乳腺癌

深入了解 Radixact 与 TomoTherapy 系统。

请联系立体定向放射治疗专家。

参见其他治疗方案示例并获得您需要的答案。

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