IGRT – Advanced Imaging Technology for Cancer Treatment
Image-guided radiation therapy (IGRT) is considered to be one of the most cutting-edge innovations in cancer treatment. Image guided radiation therapy (IGRT) involves the use of imaging technology such as X-ray, ultrasound, or optical imaging to direct the delivery of radiation during radiation therapy treatment.
This imaging technique is used to treat tumors in those parts of the body that are prone to movement or are located close to critical organs and tissues.
Highly trained radiologists use image guided radiation therapy to provide better radiation therapy to cancerous tumors. This imaging technique involves frequent two and three-dimensional imaging during the process. IGRT combines a new form of scanning technology, which allows planar or X-ray Volume Imaging with Intensity-Modulated Radiation Therapy.
Image guided radiation therapy (IGRT) uses a linear accelerator, equipped with a kilovoltage imaging source and solid state X-ray detector. IGRT combines scanning and radiation equipment for imaging the patient’s internal organs including organs affected by respiratory motion. Doctors can see and track the tumor during the treatment and are able to irradiate only the tumor and not the surrounding healthy tissues thereby optimizing the precision and accuracy of radiotherapy. The accelerator allows the physician to image the tumor while the radiation is being delivered.
This equipment is operated by a radiation therapist and a radiation technologist and is supervised by a radiation oncologist having experience in treating cancer with radiotherapy.
Using IGRT techniques, imaging specialist can maximize dose to tumors while minimizing its effect on surrounding healthy tissues. The entire radiation can be delivered in one session or over a course of several sessions.