New Technologies Create New Challenges - PET Scans Track Small Tumors After Stereotactic Body Radiotherapy
LOS ANGELES (Oct. 2007)— Readily available CT screening for lung cancer is increasing the discovery of small, primary lung cancers. For many, a radiation technique called stereotactic body radiotherapy presents a less invasive treatment option to surgery that is typically offered to non-surgical candidates. Currently there is great interest in evaluating this approach in surgical candidates, but researchers have yet to identify an early method to determine the effectiveness in treatment which is vital. In a study presented today at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles, researchers present data showing metabolic response monitored by FDG PET may be an early surrogate for local treatment failure which may allow timely salvage surgery if deemed necessary.
"Stereotactic body radiotherapy may be as effective a treatment of these small tumors as compared to surgery," explained Steven Feigenberg, MD, an attending physician in the Department of Radiation Oncology at Fox Chase Cancer Center. "Because the technique causes scarring in the lungs, it can be difficult to identify progression of the tumor on a CT scan in a timely fashion, our standard way of tracking lung tumors, which may adversely affect outcomes due to potential treatment delays.
"Our study appears to show PET scans at 3 months following treatment allow an earlier and more accurate method to evaluate tumor response. Confirming these findings is critical so that we can scientifically compare stereotactic body radiotherapy with surgery for these small tumors."
Fox Chase Cancer Center, part of Temple University Health System, is one of the leading cancer research and treatment centers in the United States. Founded in 1904 in Philadelphia as one of the nation’s first cancer hospitals, Fox Chase also was among the first institutions to receive the National Cancer Institute’s prestigious comprehensive cancer center designation in 1974. Fox Chase researchers have won the highest awards in their fields, including two Nobel Prizes. Fox Chase physicians are routinely recognized in national rankings, and the Center’s nursing program has achieved Magnet status for excellence three consecutive times. Fox Chase conducts a broad array of nationally competitive basic, translational, and clinical research and oversees programs in cancer prevention, detection, survivorship, and community outreach. For more information, call 1-888-FOX-CHASE (1-888-369-2427).