Quality Assurance for Image- Guided Radiation Therapy IGRT-QA

<p>Image-Guided Radiation Therapy (IGRT) is a technique that utilizes imaging during each treatment session to enhance the precision and accuracy of radiation therapy. By guiding the delivery of radiation to the planned target volume, IGRT ensures that the intended dose is accurately administered while sparing surrounding healthy tissues. Quality Assurance (QA) for IGRT6 on a linear accelerator (linac) is crucial to verify that the system is functioning correctly and delivering the prescribed dose effectively. The American Association of Physicists in Medicine (AAPM) Task Group 179 (TG-179) recommends periodic QA9,10 to maintain the integrity of IGRT systems. Key components of IGRT QA for linacs include ensuring the alignment of the radiation beam with the target by verifying the accuracy of the gantry, collimator and couch movements. </p>