Image Guided Radiation Therapy (IGRT)

IGRT is a modern radiation therapy technique that enhances the precision and accuracy of radiation treatment delivery.

Benefits of IGRT include:

1. Real-Time Imaging: IGRT involves the use of advanced imaging technologies, such as CT (computed tomography), ultrasound, X-rays, or MRI (magnetic resonance imaging), to obtain detailed images of the tumor and surrounding tissues just before or during each radiation treatment session.
2. Continuous Monitoring: Tumors can shift or change position within the body due to factors like differences in organ filling or natural body movements, such as breathing. IGRT addresses this challenge by providing real-time imaging during treatment, allowing radiation oncologists to account for any changes and make necessary adjustments.
3. Precise Targeting: By comparing the current images to the planning CT scan, the radiation therapy team can ensure that the radiation beams are precisely targeted at the tumor. This level of accuracy minimizes the risk of missing the tumor or irradiating healthy tissues.
4. Patient Positioning: IGRT helps ensure that the patient is in the correct position for treatment. If any discrepancies are detected between the planned position and the actual position, adjustments can be made to align the patient accurately.
5. Fiducial Markers: In some cases, tiny markers called fiducial markers may be implanted in or near the tumor. These markers serve as reference points for targeting the tumor accurately during IGRT. They are particularly useful when the tumor's location is challenging to visualize.
6. Adaptive Radiotherapy: IGRT can be used in conjunction with adaptive radiotherapy techniques. This approach allows the radiation oncologist to modify the treatment plan based on real-time tumor response or changes in the position of internal organs during the course of treatment. This adaptability enhances treatment effectiveness.
7. Minimizing Radiation to Healthy Tissues: IGRT plays a crucial role in minimizing radiation exposure to nearby healthy tissues and organs. By continually verifying the tumor's position and adjusting the treatment accordingly, IGRT helps spare healthy structures, reducing the risk of side effects.
8. Improved Treatment Outcomes: The increased precision and accuracy offered by IGRT can lead to improved treatment outcomes, including enhanced tumor control and a lower likelihood of radiation-related complications.
9. Quality Assurance: IGRT ensures that the radiation therapy is delivered with the highest level of quality and safety. It helps verify that the intended treatment plan is carried out correctly for each session.

Image Guided Radiation Therapy (IGRT) at St. Mary's Regional Cancer Center is a valuable advancement in radiation oncology. It allows for the real-time monitoring and adjustment of radiation treatments to ensure that the tumor receives the most accurate and effective radiation dose while sparing surrounding healthy tissues. IGRT enhances treatment outcomes and patient safety, making it an important tool in the fight against cancer.