Featured Research

from universities, journals, and other organizations

Combining PET And CT Scans Makes Cancer Treatment More Accurate

Date:
May 3, 2006
Source:
American Society for Therapeutic Radiology and Oncology
Summary:
Doctors have discovered that combining images derived from positron emission tomography and computed tomography in the planning and delivery of radiation treatment for patients with head and neck cancer leads to more accurate delivery of the radiation dose and an increased chance for survival. The study was published in the May 2006 issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of ASTRO, the American Society for Therapeutic Radiology and Oncology.

Doctors have discovered that combining images derived from positron emission tomography and computed tomography in the planning and delivery of radiation treatment for patients with head and neck cancer leads to more accurate delivery of the radiation dose and an increased chance for survival. The study was published in the May 2006 issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of ASTRO, the American Society for Therapeutic Radiology and Oncology.

The pilot study, conducted on 28 patients, set out to discern whether combining PET and CT images to plan intensity modulated radiation therapy, or IMRT, treatments for patients resulted in better delivery of the radiation and lower recurrence rates. The doctors fused images captured from both the PET and CT scans and found that the proposed treatment plans were very different in 14 of 16 patients whose plans had been designed using CT scanning alone. Out of the 28 patients who were followed for more than six months after treatment, 16 showed no signs of recurrence. The current standard of care for head and neck cancer patients involves surgery or radiation for early-stage cancer and some combination of radiation, surgery or chemotherapy for advanced cases. The high doses of radiation therapy that patients receive cause toxicity which can negatively impact a patients' quality of life. This study shows that IMRT, which modifies the intensity of the radiation beams to both the tumor and surrounding healthy tissue in order to avoid side effects while killing the cancer, can be used as an alternative to standard radiation therapy and could improve the patients' quality of life after cancer treatment.

"Even though it's a small sample group, this study shows the fusion of PET/CT can significantly improve treatment planning for radiation therapy and might ultimately help patients with head and neck cancer who receive radiation therapy beat their disease," said Dian Wang, M.D., Ph.D., lead author of the study and a radiation oncologist at the Medical College of Wisconsin in Milwaukee. "In addition, these patients may experience fewer side effects as the PET/CT-based target definition decreases the likelihood of including adjacent tissues that do not contain microscopic tumor cells in the high dose treatment volume. We're hoping that this study will encourage our colleagues to consider PET/CT fusion with IMRT for both initial staging and treatment planning for head and neck cancer patients."

For more information on radiation therapy for head and neck cancer, please visit www.rtanswers.org.

ASTRO is the largest radiation oncology society in the world, with more than 8,500 members who specialize in treating patients with radiation therapies. As the leading organization in radiation oncology, biology and physics, the Society is dedicated to the advancement of the practice of radiation oncology by promoting excellence in patient care, providing opportunities for educational and professional development, promoting research and disseminating research results and representing radiation oncology in a rapidly evolving socioeconomic healthcare environment.


Story Source:

The above story is based on materials provided by American Society for Therapeutic Radiology and Oncology. Note: Materials may be edited for content and length.


Cite This Page:

American Society for Therapeutic Radiology and Oncology. "Combining PET And CT Scans Makes Cancer Treatment More Accurate." ScienceDaily. ScienceDaily, 3 May 2006. <www.sciencedaily.com/releases/2006/05/060502224215.htm>.
American Society for Therapeutic Radiology and Oncology. (2006, May 3). Combining PET And CT Scans Makes Cancer Treatment More Accurate. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2006/05/060502224215.htm
American Society for Therapeutic Radiology and Oncology. "Combining PET And CT Scans Makes Cancer Treatment More Accurate." ScienceDaily. www.sciencedaily.com/releases/2006/05/060502224215.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins