modulated radiation therapy, or IMRT, is a specialized form of 3D-CRT that allows
radiation to be more exactly shaped to fit your tumor. With IMRT, the radiation
beam can be broken up into many "beamlets," and the intensity of each beamlet
can be adjusted individually. Using IMRT, it may be possible to further limit
the exact amount of radiation that is received by normal tissues that are near
the tumor. In some situations, this may also allow a higher dose of radiation
to be delivered to the tumor, increasing the chance of a cure.