Radio Surgery In Nepal At Purbanchal Cancer Hospital
Stereotactic Body Radiation Therapy (SBRT) and Stereotactic Radio Surgery (SRS)
SBRT is typically selected for small, isolated tumors throughout the body such as cancers in the lung and liver. This treatment option is usually delivered in fewer sessions with higher doses of radiation. SRS is a treatment option that delivers a very high dose of radiation in a single fraction. It is most commonly used to treat brain or spinal tumors.
Image-Guided Radiation Therapy (IGRT)
IGRT is a radiation delivery method used for tumors located in areas of the body that may change between treatments due to organ filling or movements while breathing. In order to account for these changes, IGRT uses repeated imaging scans. These scans are usually conducted in the treatment room just before the patient receives a daily radiation therapy treatment. These images allow the radiation oncologist to adjust the dosage delivered based on any small changes that may have taken place since the time of the patient’s last treatment.
Intensity Modulated Radiation Therapy (IMRT)
IMRT is a treatment option that delivers radiation through the use of hundreds of tiny radiation beam-shaping devices, called collimators. Collimators allow the radiation oncologist to target and deliver varying doses of radiation to different areas of the tumor in a meticulous way. The level of precision achieved allows the doctor to spare greater portions of surrounding healthy tissue, leading to fewer side effects.