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Dosimetric analysis of varying cord planning organ at risk volume in spine stereotactic body radiation therapy  Dawn Owen, MD, PhD, Charles S. Mayo, PhD,

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Presentation on theme: "Dosimetric analysis of varying cord planning organ at risk volume in spine stereotactic body radiation therapy  Dawn Owen, MD, PhD, Charles S. Mayo, PhD,"— Presentation transcript:

1 Dosimetric analysis of varying cord planning organ at risk volume in spine stereotactic body radiation therapy  Dawn Owen, MD, PhD, Charles S. Mayo, PhD, Limin Song, PhD, Kamran Ahmed, MD, Nadia Laack, MD, MSc, Kenneth Olivier, MD  Advances in Radiation Oncology  Volume 1, Issue 1, Pages (January 2016) DOI: /j.adro Copyright © 2016 The Authors on behalf of the American Society for Radiation Oncology Terms and Conditions

2 Figure 1 Sample thecal sac 0-, 1-, and 2-mm structures with sample dose-volume histogram. Advances in Radiation Oncology 2016 1, 76-81DOI: ( /j.adro ) Copyright © 2016 The Authors on behalf of the American Society for Radiation Oncology Terms and Conditions

3 Figure 2 Sample cord 0-, 1-, 2-, 3-, 4-, 5-, 6-, and 7-mm structures with sample dose-volume histogram. Advances in Radiation Oncology 2016 1, 76-81DOI: ( /j.adro ) Copyright © 2016 The Authors on behalf of the American Society for Radiation Oncology Terms and Conditions

4 Figure 3 Determining thecal sac dose correlation with spinal cord expansion margin. EQ2Gy, equivalent dose in 2 Gy/fraction; Max(2), maximum dose in 2 Gy equivalent fractions to the spinal cord or thecal sac. Advances in Radiation Oncology 2016 1, 76-81DOI: ( /j.adro ) Copyright © 2016 The Authors on behalf of the American Society for Radiation Oncology Terms and Conditions

5 Figure 4 Myelopathy risk per Sahgal et al and Mayo Clinic minimum EQD2 to thecal sac. 2GyEQ, dose in equivalent 2-Gy fractions; EQ2Gy, biologically equivalent dose in 2-Gy fractions. Advances in Radiation Oncology 2016 1, 76-81DOI: ( /j.adro ) Copyright © 2016 The Authors on behalf of the American Society for Radiation Oncology Terms and Conditions

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