- A study evaluated the performance of the Radixact System based on a comparison of treatment plans developed for this system and the TomoHDA™ System. Treatment plans were created using the VoLO™ Planning Solution for the TomoHDA technology, then recreated using the Accuray Precision™ Treatment Planning System (TPS) for the Radixact System. Developing optimal plans using the Accuray Precision TPS was much faster, and the treatment beam-on time was reduced by up to 50% while maintaining the excellent plan quality. Researchers at the Miami Cancer Institute in Miami, Florida and Accuray Incorporated conducted the research.
- The first clinical assessment of Radixact low-dose fan beam MVCT image guidance found there was no statistically significant difference in the noise, uniformity, and Hounsfield units (HU) stability over the three-month evaluation period, demonstrating the strength of the System's MVCT image quality and its potential value for dose calculation. Clinicians at the Miami Cancer Institute team conducted the research.
- Radixact and TomoTherapy System dosimetric beam characteristics were compared over a six-month period. Radixact data were within the specifications established for the TomoTherapy System and showed a good agreement with the beam model. These results indicate that the beam commissioning process will be straightforward for the Radixact System. Researchers at Miami Cancer Institute and Accuray conducted the study.
- Two studies demonstrated the feasibility of real-time motion management leveraging the TomoTherapy System's one-of-a-kind helical delivery capabilities.
- Accuray researchers investigated the potential for adapting the CyberKnife® System's unique Synchrony® Respiratory Tracking System to an experimental TomoTherapy System. The study showed Synchrony-like real-time respiratory motion management is technically feasible using TomoTherapy technology, enabling a high level of accuracy when delivering dose to tumors that move with respiration.
- The dosimetric impact of using real-time primary jaw/multileaf collimator (MLC) compensation approaches to mitigate motion during TomoHelical™ delivery was analyzed by a team of researchers from the University of Wisconsin, Madison and Accuray. Dose was calculated for treatment plans assuming 1) no motion, 2) respiratory motion, and 3) respiratory motion compensated by adjusting the jaw and MLC position during delivery. The team found that a jaw and MLC compensation approach mitigated the large difference between planned and delivered dose caused by motion, thus enabling reductions in margin.
Media: Beth KaplanPublic Relations Director, Accuray+1 (408) 789-4426 firstname.lastname@example.orgDanielle SullivanMSLGROUP+1 (781) 684-6680 Danielle.email@example.com View original content with multimedia: http://www.prnewswire.com/news-releases/first-radixact-system-research-results-presented-at-the-american-association-of-physicists-in-medicine-annual-meeting-300499665.html SOURCE Accuray Incorporated