RESUMO
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Intensity-modulated radiation therapy (IMRT) isan advanced form of radiotherapy for the treatmentof cancer that allows, on one hand, to administer amore homogeneous dose to the patients on the volumeto irradiate (which would increase the localcontrol of the disease), and on the other hand, to diminishthe toxicity in the organs at risk. This type oftreatment is based on imaging techniques, on computerdosimetry programs, and on more precise immobilizationaccessories. Before delivering IMRT itis necessary to establish a protocol that includes thedifferent phases of the treatment process, that is, theobtaining of anatomical data, beam definition, calculation,dose distribution, and treatment performanceand control.In this article we present the basic standards for theIMRT treatment for prostate and head-neck canceragreed upon a consensus meeting. The follow-up ofthe recommendations settled down in this documentwill help in the establishment of a standardizedclinical practice -assuring the quality- and abetter evaluation of the results of the clinical intervention
