Precision Targeting Lowers Risk While Directing Higher Dose of Radiation at Tumors
A new radiation treatment system at Rush University Medical Center addresses two important aspects of cancer treatment simultaneously with one device: confirming the exact location of a tumor during each treatment session and then delivering treatment. This approach is known as image guide radiation therapy (IGRT).
The TomoTherapy Hi-Art System combines 3-D imaging from computerized tomography (CT scanning) with precisely targeted radiation beams. Because of the remarkable accuracy of the system it is possible to direct a higher dose of radiation at a tumor with a lower risk of affecting surrounding tissues and organs.
Precise patient positioning is crucial for effective radiation treatment. With the TomoTherapy system, CT scan slices are taken through the area being treated as the patient lies on the treatment table. These slices are used to image the location of the tumor and to make immediate adjustments, if needed, to make sure the radiation is directed exactly to where it should be.