Navigation Links
OHSU Cancer Institute researchers study breathing during radiation
Date:9/24/2008

PORTLAND, Ore. Oregon Health & Science University researchers have determined exactly how much breathing affects prostate movement during radiation treatment.

The results of this research are being presented from 5 p.m. to 6:30 p.m. today at the 50th annual American Society for Therapeutic Radiology and Oncology in Boston.

"Many people think that the prostate is a static organ, meaning that it doesn't move in relation to the bony pelvis, but that is not the case. The prostate is a moving organ, and we know it moves because of many factors including how full other organs are, such as the bladder," said Tasha McDonald, M.D., Radiological Society of North America research resident grant recipient, OHSU Department of Radiation Medicine.

Although previous studies have demonstrated that the prostate moves during the breathing cycle, McDonald used the new image-guided Calypso Medical System because it offers "real time" tracking. It works by using tiny beacons, inserted into the prostate, that report the exact location and the motion patterns inside the body over time.

"Our research demonstrates that the prostate moves during the breathing cycle, mostly up and down, as much as 2 millimeters. We were able to determine this motion by evaluating the Calypso tracings of patients," McDonald said. The Calypso results were also verified by other radiation technology.

"This is important information because in low-risk prostate patients, we treat the prostate (and seminal vesicles) with a small margin, 5 to 7 millimeters to account for prostate motion and set-up error. By knowing all the factors that contribute to prostate motion, we will be able to determine appropriate margins. If the margins are too large, there can be more normal tissue toxicity and if too small we could miss the prostate," McDonald said.

Greater accuracy allows the delivery of higher-dose radiation, leaving healthy cells alone. This process sim
'/>"/>

Contact: Christine Decker
deckerch@ohsu.edu
503-494-8231
Oregon Health & Science University
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Open cancer surgery set to become a thing of the past
2. Ovarian and Endometrial Cancer Patients Experience Improved Outcomes When Treated First by a Gynecologic Oncologist
3. Medicare HMO costs may prevent cancer patient clinical trial participation
4. Hormone Therapy Not Best for Older Prostate Cancer Patients
5. Model highlights benefits and risks of cervical cancer screening methods
6. Family History Key Player in Brain Cancer Risk
7. Nonprofit Charity for Women and Brookstone Dash to Fund Breast Cancer Support
8. Radiosurgery Proves Viable for Some Pancreatic Cancers
9. Pitt research indicates new virus is culprit, not bystander, in deadly skin cancer
10. Risk of colorectal cancer extremely low 5 years after a normal colonoscopy screening
11. Whole brain radiation increases risk of learning and memory problems in cancer patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... 2014 Good Neighbor Community Services ... upcoming episode of Innovations with Ed Begley Jr, ... and show times TBA. , In this segment, ... Services’ vision to redefine the traditional approach to ... services. Through passion, innovation, determination, excellence, and collaboration, ...
(Date:7/30/2014)... SF Cable, distributor of the highest quality cables, ... internet with guaranteed customer satisfaction announces the availability of ... These lightning cords are MFI certified to meet Apple ... Cable Lightning to USB Cables feature the ... and syncing. Compatible with the iPhone 5S/5C/5 plus iPad ...
(Date:7/30/2014)... IN (PRWEB) July 30, 2014 ... the opening of its new Carmel office on July ... staff will finally be moving to the state-of-the-art suite, ... cozy and innovative space will allow for one-on-one patient ... cosmetic surgery experience. , Dr. Hamilton’s new office-suite ...
(Date:7/30/2014)... ... ... ... , UCLA researchers interviewed people with diverticulitis and confirmed that many suffer psychological and physical symptoms long after ... a UCLA team led by Dr. Brennan Spiegel interviewed patients in great detail about the symptoms they experience weeks, months or even ...
(Date:7/30/2014)... 2014 As the controversy surrounding the ... surgeries continues to grow, Bernstein Liebhard LLP notes that ... for a ban on uterine morcellation. According to a ... with leiomyosarcoma following a hysterectomy that involved the use ... diagnosis, the aggressive cancer had progressed to Stage 4. ...
Breaking Medicine News(10 mins):Health News:Good Neighbor Community Services to be Featured in an Upcoming Episode of Innovations With Ed Begley, Jr. 2Health News:SF Cable Delivers Certified Lightning Cable in Multiple Sizes and Colors 2Health News:Hamilton Facial Plastic Surgery Opens New Carmel Office 2Health News:Diverticulitis patients reveal psychological, physical symptoms long after acute attacks 2Health News:Diverticulitis patients reveal psychological, physical symptoms long after acute attacks 3Health News:Power Morcellator Controversy Grows, as Bernstein Liebhard LLP Notes Another Call to Ban Uterine Morcellation 2Health News:Power Morcellator Controversy Grows, as Bernstein Liebhard LLP Notes Another Call to Ban Uterine Morcellation 3Health News:Power Morcellator Controversy Grows, as Bernstein Liebhard LLP Notes Another Call to Ban Uterine Morcellation 4
... Practice Guidelines (CPG) has recommended that waist circumference be ... that a national surveillance system be developed that incorporates ... ,This represents a landmark publication, as Canada is the ... guidelines to address the management and prevention of overweight ...
... body to address issues such as food quality and safety, ... ,"We have been concerned with integration of our food ... agencies, and hence we have recently enacted the Food Safety ... be administered by a single autonomous and scientific regulatory body," ...
... a heat wave with day temperatures in state capital ... shooting// up to 42 degrees Celsius. ,Roads ... Korba. In Raipur, people preferred to remain indoors while ... department has forecast a further rise in heat this ...
... agreed to lower the prices of Kaletra/Aluvia in low ... on a request from the World Health Organization’s Director-General ... the treatment of HIV-1 infected adults and children above ... antiretroviral agents. It is in a category of HIV ...
... obviously stressed. Who wouldn’t be with a daughter like Tracey! ... puffing her way through// a mountain of cigarettes three or ... Hunt, formerly Langton and Rachid) is a long-running character on ... by Anne Kirkbride since 1972. Deirdre has become synonymous with ...
... the Novartis case, the government of India is moving fast ... ,It has now been notified that all patent litigations filed ... amended Patent Act have been transferred to the Intellectual Property ... pharmaceutical companies have filed cases in High Courts and lower ...
Cached Medicine News:Health News:New Guidelines to Address Growing Obesity Epidemic 2Health News:New Guidelines to Address Growing Obesity Epidemic 3Health News:Abbott to Subsidize Price of HIV Drug 2Health News:Smoking on Television is Harmful to the Health of the Nation's Youth: BMA 2Health News:Smoking on Television is Harmful to the Health of the Nation's Youth: BMA 3Health News:Patents: Appellate Board Becomes Functional 2
(Date:7/30/2014)... July 30, 2014 The Board of ... (AMCP) last evening expressed support for the "Pharmacists, ... Commission of Pharmacy Practitioners (JCPP).  As a JCPP ... a two-year period to develop a scalable, viable ... "Pharmacists are fast becoming one of ...
(Date:7/30/2014)... and Markets has announced the addition of the "Hematology ... their offering. http://photos.prnewswire.com/prnh/20130307/600769 The ... in developed countries; however, it is expected to witness high growth ... India , and Brazil in ... analyzers and reagents market is driven by factors such as increasing ...
(Date:7/30/2014)... , July 30, 2014 /PRNewswire-iReach/ -- Transluminal Technologies ... medical device company, has announced today that they ... CD™ Vascular Closure Device. Velox CD™ provides a ... following percutaneous femoral procedures. The single size velox ... in size from 5F to 8F.  ...
Breaking Medicine Technology:AMCP Endorses JCPP "Pharmacists' Patient Care Process" 2Hematology Analyzers & Reagents Market - Forecasts to 2019 2Transluminal Technologies receives CE Mark approval for velox CD(TM) vascular closure device 2
... July 29 IRIDEX Corporation (Nasdaq: IRIX ) today ... Trademark Office for U.S. Patent No. 7,766,904, "Adjustable Laser Probe For Use ... devices already in the IRIDEX product line, collectively identified and sold as ... , , ...
... For All® Inc., MMM Healthcare, Inc. (MMM) and ... access to medications, lab testing and medical imaging at substantial rate reductions ... , , ... that entitles users to savings that range as high as 50 to ...
Cached Medicine Technology:IRIDEX Granted U.S. Patent for Adjustable Laser Probe for Eye Surgery 2IRIDEX Granted U.S. Patent for Adjustable Laser Probe for Eye Surgery 3Free For All® Inc., MMM and PMC Assist Members with Pharmacy Discount 2Free For All® Inc., MMM and PMC Assist Members with Pharmacy Discount 3Free For All® Inc., MMM and PMC Assist Members with Pharmacy Discount 4
... a fully automated clinical chemistry analyzer. ... assay test parameters with a view ... 60 is an integrated system for ... special chemistries including specific proteins, TDM, ...
... Slide Rack works hand in hand with ... organized, reliable method for immunostaining. The Sequenza ... which ensures consistency and excellent staining quality. ... runs (up to 50 slides/run) with a ...
Inquire...
ISI Micro Brushes are available in a variety of French diameters. Made with stainless steel handles and nylon bristles, the ISI Micro Brushes will last through countless cleanings....
Medicine Products: