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New tumor tracking technique may improve outcomes for lung cancer patients
Date:11/19/2012

PHILADELPHIA Medical physicists at Thomas Jefferson University and Jefferson's Kimmel Cancer Center are one step closer to bringing a new tumor-tracking technique into the clinic that delivers higher levels of radiation to moving tumors, while sparing healthy tissue in lung cancer patients.

Evidence has shown a survival advantage for lung cancer patients treated with higher doses of radiation. Therefore, there is an increased interest to find novel ways to better track tumorswhich are in constant motion because of breathingin order to up the dosage during radiation therapy without increasing harmful side effects

After proving its success in simulations, researchers have now shown that their real-time tracking technique can achieve such tasks. Not only can it better predict and track tumor motion and deliver higher levels of radiation to lung cancer patients and others with moving tumor targets, it can also successfully be implemented into existing clinical equipment (i.e., Elekta Precise Table).

The results of the study, led by Ivan Buzurovic, Ph.D., a medical physics resident and researcher in the Department of Radiation Oncology at Thomas Jefferson University, and Yan Yu, Ph.D., Professor, Vice Chair and Director of Medical Physics at Thomas Jefferson University, were published in the November issue of Medical Physics.

"We've shown here that our system can better predict and continuously track moving tumors during radiotherapy, preventing unnecessary amounts of radiation from being administered to unnecessary areas," said Dr. Buzurovic. "Just as important, we've successfully modified existing technology to integrate with the system to perform the tracking and delivery, meaning no additional robotic systems is needed."'/>"/>

Contact: Steve Graff
stephen.graff@jefferson.edu
215-955-5291
Thomas Jefferson University
Source:Eurekalert

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