Results from a University of Pittsburgh study evaluating intensity modulated radiation therapy (IMRT) for breast cancer indicate that IMRT results in a lower dose of radiation to healthy breast tissue when compared to standard radiation. The findings were presented today at the 46th Annual Meeting of the American Society for Therapeutic Radiology and Oncology (ASTRO) in Atlanta.
"More than 70 percent of breast cancer patients receive ionizing radiation therapy to treat their disease," said Dwight E. Heron, M.D., study co-author and assistant professor of radiation oncology, University of Pittsburgh School of Medicine and vice chairman of radiation oncology, University of Pittsburgh Medical Center. "While these high-energy beams are targeted to the tumor site as precisely as possible, they often inadvertently injure healthy breast tissue that surrounds the tumor site, limiting the doses of radiation that can be used to effectively destroy cancer cells. With this study, we sought to discover whether tightly focused radiation beams, such as those provided by IMRT, would make a difference in the amount of radiation received by the side of the breast opposite from the tumor site."
In the study, 65 patients with breast cancer who had received breast-conserving surgery were treated with IMRT using the Eclipseâ Planning System, Varian Medical Systems, and compared with 18 patients treated with conventional 2D or 3D radiation therapy. Results indicated a 35 percent reduction in radiation dose to the breast opposite the tumor site at the 4 cm position from the patients midline and a 57 percent reduction at the 8 cm position in favor of those patients treated with IMRT.
Clare Collins | EurekAlert!
WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf
First form of therapy for childhood dementia CLN2 developed
25.04.2018 | Universitätsklinikum Hamburg-Eppendorf
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology