“This study was important because it reassures a patient with prostate cancer that the methods that are available at his local hospital may, in many cases, be as good as those that are currently only available in a limited number of centers,” said Anthony L. Zietman, M.D., a professor of radiation oncology at Harvard Medical School and a radiation oncologist at Massachusetts General Hospital.
According to the American Cancer Society, approximately 218,890 new cases of prostate cancer will be diagnosed in the United States in 2007. One in six men will get prostate cancer in his lifetime; however, only one in 35 men will die from the disease due in part to the wide variety of treatment options available. The Massachusetts General Hospital Department of Radiation Oncology and Harvard Medical School, both in Boston, jointly conducted the study to determine the comparative dosimetric benefits and drawbacks of IMRT versus 3D-CPT as treatments for patients with prostate cancer and to determine whether specific cases should be assigned to one treatment method over the other. The study sought to identify the sites in which proton therapy offers an advantage over IMRT; IMRT is a readily available form of treatment, but proton therapy is only available at five treatment centers in the United States.
Ten patients with clinically-localized early-stage prostate cancer were randomly selected for the study and treated with both IMRT and 3D-CPT. The percentage of bladder volumes receiving more than 70 Gy/CGE was reduced by an average of 34 percent when using IMRT versus 3D-CPT, but the rectal volumes were found to be equivalent.
The American Society for Therapeutic Radiology and Oncology, Inc. 8280 Willow Oaks Corporate Drive Suite 500 Fairfax VA 22031 phone 703-502-1550 fax 703-502-7852
Beth Bukata | EurekAlert!
Researchers simplify tiny structures' construction drip by drip
12.11.2018 | Princeton University, Engineering School
Mandibular movement monitoring may help improve oral sleep apnea devices
06.11.2018 | Elsevier
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly
The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...
Scientists developed specially coated nanometer-sized vehicles that can be actively moved through dense tissue like the vitreous of the eye. So far, the transport of nano-vehicles has only been demonstrated in model systems or biological fluids, but not in real tissue. The work was published in the journal Science Advances and constitutes one step further towards nanorobots becoming minimally-invasive tools for precisely delivering medicine to where it is needed.
Researchers of the “Micro, Nano and Molecular Systems” Lab at the Max Planck Institute for Intelligent Systems in Stuttgart, together with an international...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
12.11.2018 | Life Sciences
12.11.2018 | Materials Sciences
12.11.2018 | Physics and Astronomy