Image-Guided Radiation Therapy

Image-Guided Radiation Therapy (IGRT)

Image-guided radiation therapy (IGRT) is radiation treatment guided by imaging systems, such as CT, ultrasound or stereoscopic X-rays. IGRT delivers radiation to tumors with more precision than was traditionally possible. Since tumors often move based on your day-to-day position on the treatment table (as well as from breathing), IGRT allows your doctor to better deliver the appropriate dose directly to your tumor by using a variety of automated tracking systems. Daily imaging allows your doctor to precisely locate your tumor while you’re in the treatment position. IGRT minimizes the effect on healthy tissue exposed to radiation during treatment while allowing the precise dose to be delivered to the tumor.

Intensity-Modulated Radiation Therapy (IMRT)

IMRT uses advanced technology to manipulate beams to conform to the shape of a tumor. IMRT uses multiple radiation beams of varying intensities to precisely treat a tumor. The intensity of each radiation beam is controlled, as the shape of each beam changes to “sculpt” the dose delivered to the tumor. The goal of IMRT is to bend the radiation dose to avoid and reduce exposure of healthy tissue and limit the side effects of treatment.

Please call Memorial Cancer Institute to schedule an appointment: 954-265-4325, or email us.