Assessment of beam-matched linacs quality/accuracy for interchanging SBRT or SRT patient using VMAT without replanning.

CONCLUSION: Minimal differences in beam parameters, point doses, and passing rates among three linacs proved the viability of swapping SBRT/SRT using VMAT among beam-matched linacs. The effect of plan complexity on passing rate difference among beam-matched linacs is not statistically significant. PMID: 30402983 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research

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Authors: Su TT Abstract Ionizing radiation (IR) is used to treat more than half of human cancer patients. The therapeutic effect of IR is due to its ability to induce apoptosis. Success of radiation therapy relies not only on apoptosis induction but also on whether surviving cancer cells proliferate and regenerate a tumor. Drosophila melanogaster is a premier genetic model and, relevant to radiation biology of cancer, Drosophila larvae display an amazing capacity to regenerate. IR doses that kill more than half of the cells in larval tissues still allow complete regeneration to produce an adult fly of normal size a...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
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In conclusion, the present study demonstrated that this prognostic model may serve as a novel tool for improving prediction of survival outcomes and may therefore be used in clinical applications. PMID: 31516567 [PubMed]
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Leptomeningeal metastasis (LM) is a devastating and terminal complication of advanced non-small-cell lung cancer (NSCLC), especially in patients harboring epidermal growth factor receptor (EGFR) mutations. The...
Source: Radiation Oncology - Category: Cancer & Oncology Authors: Tags: Research Source Type: research
Radiation therapy firm Varian Medical Systems has made an investment in Oncora...Read more on AuntMinnie.comRelated Reading: Varian: China tariffs lifted from linear accelerators Varian finishes buy of Boston Scientific products Varian posts 16% revenue gain in Q3 Varian to highlight RT management system at AAPM meeting Varian to buy 2 Boston Scientific product lines
Source: Headlines - Category: Radiology Source Type: news
Four years ago, Varian’s Applied Research Team, a group separate from its research and development unit, began looking at how to incorporate artificial intelligence into cancer therapy. The team’s hard work has resulted in the development of Ethos, an AI-driven holistic solution designed to increase the efficiency of radiotherapy. MD+DI spoke with Chris Toth, president of Varian Oncology Systems ahead of Ethos’ launch at the American Society for Radiation Oncology [ASTRO] annual meeting in Chicago held this week. Ethos is an Adaptive Intelligence solution. T...
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Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
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Conclusion: Radiation therapy and pelvic operation for cancer were more common causes than birth injury, and these causes of rectovaginal fistula were the most important prognostic factors. An individualized approach and repeated surgeries with complex or newly developed procedures, even among high-risk causes of fistula, may be necessary to achieve successful closure. PMID: 31508396 [PubMed]
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