Expands patient-first treatment like no other system in the worldImage guided, intensity modulated radiation therapy (IG-IMRT), featuring best-in-class clinical workflows and highly conformal and homogenous treatments enabled by a unique ultra-fast multi-leaf collimator (MLC). The Radixact® System shapes radiation to the tumor while sparing normal, healthy tissue.
- Longest treatment fields in the industry: Eliminates multiple isocenters and field junctions that are time-consuming to plan and deliver and can lead to hot and cold spots.
- Simultaneous irradiation of multiple target volumes.
- 3DCRT and IMRT modes: Same straightforward treatment planning process for routine and complex cases.
- 360-degree treatment delivery provides highly conformal, uniform dose distribution while minimizing dose to surrounding normal structures.
- TomoEDGE™ Dynamic Jaws dynamically conform to the target in the craniocaudal direction, producing sharp dose fall-off for precise sparing of normal tissue and increased throughput.
- Fastest leaf speed in the industry produces more modulation compared to other IMRT delivery techniques.
Demonstrated clinical benefits for head & neck cancers
A prospective, multi-institutional clinical study supported by the French National Cancer Institute (INCa: Institut National du Cancer) demonstrated that patients with head and neck cancer treated with intensity-modulated radiation therapy (IMRT) showed a significantly better local control rate, cancer-specific survival rate and post-treatment salivary function when treated with TomoHelical™ compared to RapidArc2.
The study, the first to prospectively compare clinical outcomes across radiation therapy platforms, was part of a voluntary evaluation of IMRT platforms by 14 French centers following a rigorous methodology. This landmark study demonstrates that the technique used to deliver IMRT can have a major impact on patient outcomes.
Proven Superior Clinical Outcomes With TomoHelical™ Compared To Rapidarc For Head And Neck Cancer
Proven ResultsListen to Dr. Bibault discuss the clinical study
An ideal clinical solution for routine and complex indicationsThe Radixact® and TomoTherapy® systems offer TomoHelical delivery, providing the flexibility to treat a spectrum of cancer cases from a single platform.
TomoEDGE™ Dynamic Jaws
Bilateral Head & Neck
- Treatment mode: TomoHelical™ IMRT
- Rx: 56 Gy / 35 Fx + 63 Gy + 70 Gy simultaneous integrated boosts (SIB)
- Delivery time: 4:31 min:sec
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
2. Bibault J-E, et al. “Clinical outcomes of several IMRT techniques for patients with head of neck cancer: A propensity score weighted analysis.” International Journal of Radiation Oncology Biology Physics. 2017; 99(4): 929-937 – http://dx.doi.org/10.1016/j.ijrobp.2017.06.2456
3. 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
4. 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
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6. 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
7. 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