O Stoma Mia wrote: Stereotactic Body Radiation Therapy [SBRT];
....... Image Modulated Radiation Therapy [IMRT] )
We should be careful throwing around generic abbreviations and references .... just a friendly FYI.
SBRT would typically be used for targetted therapy of specified lesions, specifically localized stereotactically
within the body, to avoid radiating sensitive tissues....( i.e. used for localized thoracic mets )
So called broad beam or generalized "local" radiation just kind of blasts what is in the area.
IMRT is actually INTENSITY Modulated Radiation Therapy .... not image
Modulated Radiation Therapy, and as such adjusts the intensity
of the radiation beam based upon the 3 dimensional configuration of the actual tumor field to be treated and the radiation beams "access" to the targetted tissue through the patient, while in a given position on the platform.
BOTH SBRT and IMRT take into consideration the field of treatment and anything "important" in the way of the radiation so as NOT to over irradiate or harm sensitive, normal tissues.
BOTH are basically computerized modalities, whereas the broad beam / field irradiation is more old school with less of the modern enhancements.