After Stereotactic Body Radiotherapy PET Scans Track Small Tumors

Main Category: Medical Devices / Diagnostics
Also Included In: Lung Cancer;  MRI / PET / Ultrasound;  Radiology / Nuclear Medicine
Article Date: 29 Oct 2007 - 2:00 PDT

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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 at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles, researchers presented 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, M.D., an attending physician in the Department of Radiation Oncology at Fox Chase Cancer Center. "Because the technique causes scaring 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."

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Fox Chase Cancer Center was founded in 1904 in Philadelphia as the nation's first cancer hospital. In 1974, Fox Chase became one of the first institutions designated as a National Cancer Institute Comprehensive Cancer Center. Fox Chase conducts basic, clinical, population and translational research; programs of prevention, detection and treatment of cancer; and community outreach. For more information about Fox Chase activities, visit the Center's web site at http://www.fccc.edu/.

Source: Karen Mallet
Fox Chase Cancer Center

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