SUNNYVALE, Calif., Nov. 2, 2015 /PRNewswire/ -- Accuray Incorporated (NASDAQ: ARAY) announced today that studies on the clinical use of the leading-edge CyberKnife® and TomoTherapy® Systems continue to reinforce the devices' broad-based radiation treatment capabilities. More than 80 studies were presented during poster and oral sessions at the 57th Annual American Society for Radiation Oncology (ASTRO) Meeting in San Antonio, October 18 – 21, 2015. Some of the studies presented show long-term efficacy and safety with median follow-up exceeding five years.
For more information on the CyberKnife and TomoTherapy Systems, visit www.accuray.com.
Data from China and Japan show faster treatment times and efficacy with TomoEDGE™ Dynamic Jaws
Ad Statistics
Times Displayed: 21862
Times Visited: 433 Stay up to date with the latest training to fix, troubleshoot, and maintain your critical care devices. GE HealthCare offers multiple training formats to empower teams and expand knowledge, saving you time and money
TomoTherapy System
A study compared the plan quality and delivery efficiency of TomoHelical™ using TomoEDGE™ dynamic jaws to TomoHelical fixed jaw delivery mode for nasopharyngeal carcinoma treatments. Results showed equivalent plan quality, with dynamic jaws mode providing a more efficient delivery and better sparing of the optic chiasm, pituitary and parotid glands when compared to fixed jaw delivery mode. Clinicians affiliated with the Hong Kong Sanatorium & Hospital conducted the study.
An evaluation of stereotactic radiation therapy (SBRT) for brain metastases using TomoHelical in dynamic jaws mode found treatment time was reduced by 75 percent using this modality compared to treatment with fixed jaw delivery mode, and at 12 months follow-up the local control rate was 100 percent. Research was conducted at five Japanese centers.
Long-Term data (5 plus years) show excellent efficacy with both the CyberKnife and TomoTherapy Systems
CyberKnife System
Five-year physician-reported toxicity, survival, and relapse free survival outcomes were reported for patients enrolled in a phase 2 prospective multicenter study evaluating SBRT for organ-confined prostate cancer using the CyberKnife System. The data indicate rates of serious adverse events have been minimal, with intermediate-risk patients experiencing high rates of overall and relapse-free survival. Physician-reported toxicities and relapse-free survival rates compared favorably to other radiation therapy modalities. Seven U.S. hospitals participated in the study, including Swedish Cancer Institute in Seattle, Washington and Beth Israel Deaconess Medical Center in Boston, Massachusetts.
An additional study of the CyberKnife System for low and intermediate organ-confined prostate cancer showed a high rate of biochemical progression free survival (95.8 percent and 90 percent for low- and intermediate-risk groups, respectively) with acceptable toxicity at a median follow-up of 84 months. Median PSA nadir was reached at four years and has remained unchanged for up to eight years, suggesting that the response is durable. Research was conducted at FROS Radiation Oncology and CyberKnife Center.
