Treating patients with advanced non-small cell lung cancer more aggressively by giving them higher doses of radiation helps keep the disease from spreading and allows some patients to live longer, according to a new study published in the November 1, 2004, issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of ASTRO, the American Society for Therapeutic Radiology and Oncology.
An estimated 45,000 to 50,000 people were diagnosed with locally advanced non-small cell lung cancer in 2003 with an expected five-year survival rate of only 10 to 20 percent, according to the study. Although adding chemotherapy can help some patients live longer, in general survival rates are very low, particularly in comparison to other cancers.
In the study, 72 patients with stage III (or advanced) non-small cell lung cancer were split into two groups and treated with different doses of three-dimensional conformal radiotherapy in addition to chemotherapy. Of the 37 patients in the first group treated with a low dose of radiation therapy, 61 percent of the patients saw their cancer spread during the first year. By the second year, 76 percent of the patients had suffered a relapse. In contrast, of the 35 patients in the second group who were treated with a higher dose of radiation therapy, 27 percent of patients saw their cancer come back within the first year and 47 percent had suffered a relapse by the second year.
Beth Bukata | EurekAlert!
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In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
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A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
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