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Clinicians Use Advanced Radiotherapy Imaging Techniques from Elekta to More Accurately Visualize Moving Tumors in Patients with Lung Cancer
Date:10/18/2010

LEEDS, England, Oct. 18 /PRNewswire/ -- A 67-year-old female patient with lung cancer presented physicians with a difficult challenge: her tumor was small and it rode up and down with her breathing. During her treatment set up, all doctors saw on their therapy system's imaging equipment was a blur of motion. Fortunately, Leeds Teaching Hospitals NHS Trust was able to utilize its Symmetry™ motion management software; new imaging technology from Elekta that enables clear visualization of moving targets.

"For this patient, and many similar lung cancer cases, Symmetry is invaluable," says her physician, Kevin N. Franks, M.D., Consultant in Clinical Oncology at St. James Institute of Oncology, Leeds Teaching Hospitals NHS Trust. "Our first patient's tumor was just 1.4 cm in size and its range of motion when she breathed was 2.4 cm because it was close to her diaphragm. Treating a small tumor with this kind of motion would normally have excluded her from aggressive treatments such as Stereotactic Body Radiation Therapy [SBRT], particularly if you can't see it well on imaging studies."

Symmetry provided sufficient scan quality to isolate the "moving" tumor and the patient -- the first at Leeds to benefit from the technique -- received five SBRT treatments, which use precise stereotactic targeting and a potent dose designed to achieve control of the tumor.

Symmetry captures tumor position virtually invisible on static imaging

Symmetry is a feature set of Elekta's X-ray Volume Imaging (XVI) package of software for Image Guided Radiation Therapy (IGRT). The software enables clinicians to add the fourth dimension (i.e. 4D) of motion to enhance image guidance with the patient in the treatment position just before
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SOURCE Elekta
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