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Stereotactic RadiologyStereotactic Radiology By: Jeremy Lishner

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Difference Between (SRS) & (SBRT) Stereotactic Radiosurgery (SRS) Treats tumors and other abnormalities in the brain. Stereotactic Body Radiotherapy (SBRT) Treats tumors and other abnormalities in other parts of the body. Both SRS & SBRT rely on several different technologies Three-dimensional imaging and localization techniques that determine the exact coordinates of the target in the body System to immobilize and carefully position the patient Highly focused gamma-ray or x-ray beams that converge (in one point) on a tumor or abnormality Image-guided radiation therapy (IGRT),which uses medical imaging to confirm the location of a tumor immediately before, and in some cases during the delivery of radiation to further improve the precision and accuracy of the treatment

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Stereotactic Radiosurgery is used to treat: many types of brain tumors, including: benign and malignant primary and metastatic single and multiple residual tumor cells following surgery intracranial, orbital and base-of-skull tumors arteriovenous malformations (AVMs), a tangle of expanded blood vessels that disrupts normal blood flow in the brain and sometimes bleeds. other neurological conditions

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Stereotactic Body Radiotherapy is currently used and/or being investigated for use in treating malignant or benign small-to-medium size tumors in the body, including the: lungs liver abdomen spine prostate Head or neck Tumor in the abdomen Tumor in the lung BEFORE AFTER

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Equipment That is Used The Gamma Knife, which uses 192 or 201 beams of highly focused gamma rays all aiming at the target region. The Gamma Knife is ideal for treating small to medium size intracranial lesions. Linear accelerator (LINAC) machines, prevalent throughout the world, deliver high-energy x-rays, also known as photons. The linear accelerator can perform radiosurgery on larger tumors in a single session or during multiple sessions, which is called fractionated stereotactic radiotherapy. Proton beam or heavy-charged-particle radiosurgery is in limited use in North America, though the number of centers offering proton therapy has increased dramatically in the last several years.

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Works Cited http://www.rtanswers.org/treatmentinformation/treatmenttypes/stereotacticr adiation.aspx http://science.nationalgeographic.com/wallpaper/science/photos/brain/brain -tumor/ http://www.rtanswers.org/treatmentinformation/treatmenttypes/stereotacticr adiation.aspx http://www.strokeassociation.org/strokeorg/