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SRT (Stereotactic Radiation Therapy)

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SRT (Stereotactic Radiation Therapy)


SRT is a specialized form of radiation treatment that utilizes a precisely focused beam of radiation to treat a small, stereotactically defined, target lesion while minimizing irradiation of adjacent normal structures. The treatment technique utilizes a modified linear accelerator technology. Depending on the clinical circumstances, either a single large dose of radiation (single fraction SRT AKA radiosurgery) or multiple small doses over a 5 to 6 week period (fractionated SRT) is given. Some clinical examples that may be suitable for this technique include Arteriovenous Malformations, Acoustic Neuromas, Small Meningiomas, Small Pituitary Adenomas and Cerebral Metastasis.

Stereotactic radiation therapy utilizes a system of three-dimensional coordinates in order to locate a pre-determined target for treatment. Stereotactic technique can use either an external, three-dimensional frame fixed directly to an immobilized patient or image guidance technology. The primary benefit of stereotactic treatment is its ability to locate small targets with great precision