What is IMRT/VMAT?

IMRT (Intensity-Modulated Radiation Therapy) and VMAT (Volumetric Modulated Arc Therapy) are advanced forms of external beam radiation therapy used to treat cancer. IMRT delivers radiation beams of varying intensities from multiple angles to precisely target tumors while minimizing exposure to surrounding healthy tissue. VMAT is a type of IMRT that delivers radiation continuously as the treatment machine rotates around the patient, allowing for faster treatment times. Both techniques are commonly used to treat cancers in the prostate, head and neck, breast, and other areas, where precise targeting and sparing of critical organs are important.