Abstract # 1015 Single Fraction Image Guided Intensity Modulated Radiation Therapy (IG IMRT) for Metastatic Lesions of the Spinal Column

Presenter: Yamada, Yoshiya

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Methods: Thirty three oligometastatic patients with lesions metastatic to the spinal column were immobilized in a non invasive cradle. No patient had undergone prior treatment to the region of interest, including surgery or prior radiotherapy. IMRT was utilized to provide spinal cord dose-sparing treatment plans (dmax < 1000 cGy) while delivering 1800-2400 cGy to the lesion (median 2100 cGy) in a single fraction set to a single isocenter. Two dimensional and/or three dimensional (cone beam CT) image guided verification was performed immediately before and after the administration of radiation to verify patient positioning and isocenter setup. Each patient was followed every three months with clinical and radiographic (including MRI) assessment. No patient has been lost to follow up.

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