You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Sterotactic radiosurgery is a form of: and explain in detail?
Ans: A (Radiotherapy) Ref: Devita's Cancer: Principles and Practice of Oncology, 7th edition, pg: 283Explanation:Stereotactic RadiosurgeryIt is a type of external beam radiation therapy.It is a single day procedure for treating small intracranial lesion.The technique requires metallic frame that is rigidly attached to the patient head.The patient undergoes CT scan and three dimensional treatment planning is performed.A number of small beams are designed to create a highly conformational treatment plan.The beam delivered has accuracy in millimeters due to the sterotactic ring.Treatment is delivered as a single beam fraction (15 to 20 Gy).Major limitation is that it can be used for small tumors only.It uses special equipment to position the patient and precisely deliver radiation to a tumor.The total dose of radiation is divided into several smaller doses given over several days.Used to treat brain tumors and other brain disorders.It is also being studied in the treatment of other types of cancer, such as lung cancer.