beth israel deaconess medical center a harvard medical school teaching hospital

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Intensity Modulated Radiation Therapy

Intensity Modulate Radiation Therapy, or IMRT, is a form of radiation therapy, and more specifically, 3D conformal radiation therapy. However, in IMRT, the intensity of each radiation field can be spatially altered, or modulated, to deliver an even more precise, 3D conformal radiation therapy plan. The modulation of the radiation " intensity is achieved by using many sub-fields within a single field. These sub-fields are called segments. A given IMRT field can have as many as 50 segments.

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Radiation Oncology
Beth Israel Deaconess Medical Center
330 Brookline Avenue
Boston, MA 02215