Modern radiation therapy for nodal non-hodgkin lymphoma - Target definition and dose guidelines from the international lymphoma radiation oncology group

Tim Illidge, Lena Specht, Joachim Yahalom, Berthe Aleman, Anne Kiil Berthelsen, Louis Constine, Bouthaina Dabaja, Kavita Dharmarajan, Andrea Ng, Umberto Ricardi, Andrew Wirth

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Radiation therapy (RT) is the most effective single modality for local control of non-Hodgkin lymphoma (NHL) and is an important component of therapy for many patients. Many of the historic concepts of dose and volume have recently been challenged by the advent of modern imaging and RT planning tools. The International Lymphoma Radiation Oncology Group (ILROG) has developed these guidelines after multinational meetings and analysis of available evidence. The guidelines represent an agreed consensus view of the ILROG steering committee on the use of RT in NHL in the modern era. The roles of reduced volume and reduced doses are addressed, integrating modern imaging with 3-dimensional planning and advanced techniques of RT delivery. In the modern era, in which combined-modality treatment with systemic therapy is appropriate, the previously applied extended-field and involved-field RT techniques that targeted nodal regions have now been replaced by limiting the RT to smaller volumes based solely on detectable nodal involvement at presentation. A new concept, involved-site RT, defines the clinical target volume. For indolent NHL, often treated with RT alone, larger fields should be considered. Newer treatment techniques, including intensity modulated RT, breath holding, image guided RT, and 4-dimensional imaging, should be implemented, and their use is expected to decrease significantly the risk for normal tissue damage while still achieving the primary goal of local tumor control. © 2014 Elsevier Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)49-58
    Number of pages9
    JournalInternational Journal of Radiation Oncology Biology Physics
    Volume89
    Issue number1
    DOIs
    Publication statusPublished - 1 May 2014

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