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Home › Radiation oncology › Image-Guided Radiation Therapy (IGRT)
Image-Guided Radiation Therapy (IGRT) is an advanced radiation oncology technique designed to maximize treatment precision and protect healthy surrounding tissue.
Because tumours and internal organs shift naturally—influenced by daily bodily functions like breathing, digestion and bladder filling—exact targeting before every session is vital for optimal outcomes.
Through real-time, high-quality imaging performed immediately prior to or during treatment, IGRT allows the radiation oncology team to verify tumour position and adjust the radiation beam with sub-millimeter accuracy.
IGRT is an industry standard in radiation oncology used to treat various cancerous (malignant) and non-cancerous (benign) tumours, including:
Every cancer treatment plan requires a personalized clinical evaluation. At Karnawat Cancer Hospital in Chhatrapati Sambhajinagar, our radiation oncology department reviews each patient’s specific diagnosis, tumour site and medical history to determine whether Image-Guided Radiation Therapy (IGRT) is the optimal approach for their treatment.
Under the expert clinical guidance of our leading specialists, we ensure that high-precision radiation protocols are customized to deliver the maximum therapeutic dose to the tumour while safeguarding adjacent healthy tissues.
IGRT itself does not cause separate side effects; any symptoms depend on the area being treated, radiation dose and combined therapies. Because IGRT targets tumours precisely, it helps minimize damage to healthy surrounding tissue.
Mild fatigue, localized skin redness or dryness and hair loss strictly within the treated area.
IGRT uses different imaging technologies to check tumour position before and during treatment.
Takes detailed 3D soft-tissue scans directly on the treatment machine (such as Cone-Beam CT or TomoTherapy) right before radiation is delivered.
Uses quick 2D X-ray images (kV or MV portal imaging) to align the patient based on bones or internal markers.
Tracks tumour movement caused by breathing (like in lung or breast cancer) so radiation fires only when the tumour is in position.
Uses tiny implanted gold seeds inside or near the tumour to continuously verify its exact position.
Uses 3D optical cameras to track skin surfaces and patient posture in real time without extra radiation.
Combines MRI with a linear accelerator to provide ultra-clear images of soft tissue without additional X-ray radiation.
Standard radiation therapy uses static imaging taken before the treatment course begins. IGRT takes high-resolution images immediately before or during every radiation session to account for daily organ and tumour movement.
No, the radiation treatment itself is completely painless. The imaging process before treatment feels similar to getting a standard X-ray or CT scan.
While the actual delivery of radiation lasts only a few minutes, the entire session usually takes 15 to 30 minutes to allow for precise patient positioning and imaging checks.
Image-Guided Radiation Therapy, or IGRT, is a radiation treatment technique that uses medical imaging to help confirm patient positioning and the location of the treatment area before or during radiation delivery.
IGRT is used to guide and verify the delivery of external beam radiation therapy. It helps the treatment team account for changes in patient position, tumour location or nearby anatomy during the treatment process.
This page is for general information and does not replace a consultation. Treatment is decided by your oncologist after reviewing your reports.
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