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Cancer Treatment Centers of America

Intensity-modulated radiation therapy

What is intensity-modulated radiation therapy (IMRT)?

Intensity modulated radiation therapy (IMRT) uses advanced software to plan a precise dose of radiation, based on tumor size, shape and location. A computer-controlled device called a linear accelerator delivers radiation in sculpted doses that match the 3D geometrical shape of the tumor, including concave and complex shapes.

With IMRT, our radiation oncologist can adjust the intensity of radiation beams across the treatment area as needed with precision accuracy. This means we can deliver higher radiation doses than traditional radiation therapy methods, while reducing exposure to healthy tissues.

Because of its greater degree of accuracy, IMRT may be a treatment option for patients who have reached the maximum allowable dose of conventional radiation therapy and have a recurrent tumor in the treated area.

IMRT medical animation

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