Navigation Links
Radiation-armed robot rapidly destroys human lung tumors

Super-intense radiation delivered by a robotic arm eradicated lung tumors in some human patients just 3-4 months after treatment, medical physicist Cihat Ozhasoglu, Ph.D. of the University of Pittsburgh Medical Center will report in early August at the 48th Annual Meeting of the American Association of Physicists in Medicine in Orlando. Although it is too early to determine the technique's long-term effectiveness, Ozhasoglu and his colleagues find promise in this new approach to treat lung cancer and other tumors that move during breathing.

At the University of Pittsburgh, Ozhasoglu and approximately 30 colleagues form one of the largest US teams devoted to the CyberKnife, a radiation delivery system that uses an accurate, precise robotic arm to aim highly focused x-ray beams at the site of a tumor. Currently there are 76 active CyberKnife sites worldwide (with 45 in the US), and an additional 62 scheduled to be installed globally.

Recently, the Pittsburgh researchers upgraded their CyberKnife by adding a system called "Synchrony," which accurately targets tumors that move as a result of breathing. Synchrony instructs the robotic arm to move the radiation source (a linear accelerator that produces x-rays) in sync with the tumor motion.

As a result of the unique real-time tumor tracking capabilities of their upgraded CyberKnife, the researchers have established detailed methods for the safe treatment of lung tumors which otherwise couldn't be treated with a high dose of radiation due to lack of sufficient real-time tracking accuracy in other, more conventional radiation therapy machines.

Treating lung tumors with the enhanced Cyberknife requires only 1-3 sessions lasting 60-90 minutes. In conventional radiotherapy, patients must endure dozens of radiation treatments, each lasting about 15 minutes but requiring 20-30 hospital visits.

In a single treatment, Cyberknife blasts a lung tumor from all sides by delivering typic ally 100-150 intense, focused x-ray beams, causing the tumor to absorb approximately 10 times more radiation than in a conventional radiotherapy session. Cyberknife can deliver so much more radiation than other techniques because its robotic arm aims the x-rays precisely enough to avoid surrounding healthy tissue.

To track the moving tumor, the CyberKnife takes real-time x-ray pictures of the patient while using external markers attached to the patient's chest or abdomen to follow tumors in real time with a few millimeters of accuracy. The researchers also applied Synchrony to treating tumors in the thorax and abdomen, which can move as much as 4 cm during respiration.


'"/>

Source:American Institute of Physics


Related biology news :

1. U of MN uses robotic surgery techniques in cardiac cell therapy research
2. 3-D ultrasound scanner could guide robotic surgeries
3. Telemedicine robots help improve health
4. Mouse brain cells rapidly recover after Alzheimers plaques are cleared
5. New technique rapidly detects illness-causing bacteria
6. Prions rapidly remodel good protein into bad, Brown study shows
7. Scientists must offer solutions for conserving tropical forests in a rapidly changing world
8. New strategy rapidly identifies cancer targets
9. Fire ant-attacking fly spreading rapidly in Texas
10. Fragmentation rapidly erodes Amazonian biodiversity
11. Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/18/2016)... --> --> Competitive Landscape Analysis ... Physical infrastructure and Perimeter Surveillance & Detection Systems ... and the continuing migration crisis in the Middle ... led visiongain to publish this unique report, which is crucial ... & security companies in the border security market and the ...
(Date:3/14/2016)... MELBOURNE, Florida , March 14, 2016 ... on the growing mobile commerce market, announces the airing of ... York channels starting the week of March 21 st . ... and CNBC, including its popular Squawk on the Street show. ... company focused on the growing mobile commerce market, announces the ...
(Date:3/10/2016)... PUNE, India , March 10, 2016 ... to a new market research report "Identity and Access ... SSO, & Audit, Compliance, and Governance), by Organization Size, ... Forecast to 2020", published by MarketsandMarkets, The market is ... to USD 12.78 Billion by 2020, at a Compound ...
Breaking Biology News(10 mins):
(Date:5/24/2016)... Israel , May 24, 2016   MedyMatch Technology ... physicians with artificial intelligence, real-time decision support tools in the ... present at the 2016 Israeli Advanced Technology Industries (IATI) BioMed ... Israel,s 15th National Life Sciences and ... at the David Intercontinental Hotel in Tel Aviv, ...
(Date:5/23/2016)... Willoughby, Ohio (PRWEB) , ... May 23, 2016 ... ... Six Trends That Will Drive Precision Farming in 2017 and Beyond. The paper ... and practitioners in the precision ag industry. , “We’ve witnessed a lot of ...
(Date:5/23/2016)... ... May 23, 2016 , ... RoviSys, a leading ... in Aurora, Ohio, has broken ground on a new building in Holly Springs, ... area, this new location solidifies a commitment to business in the region. The ...
(Date:5/20/2016)... ... May 20, 2016 , ... Kablooe Design, a leading provider of product ... official 25th anniversary of the business. “We have worked hard to build long-term relationships,” ... for the privilege and honor of serving their product design and development needs through ...
Breaking Biology Technology: