A phantom for heavy ion radiation therapy provides characterization of an ion beam that may enter but not exit from the phantom. The phantom may include multiple materials and multiple spatially dispe...
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Stereotactic radiosurgery (SRS) is a specialized form of radiation therapy that uses a precise, highly localized photon beam to treat small tumors especially in the brain. Reducing beam energy from th...
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Radiosurgery is a non-invasive procedure that degrades tumors and other unhealthy tissue with high-energy beams of radiation. To spare surrounding tissue, it is critical that irradiation is precisely ...
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Stereotactic radiosurgery (SRS) is a specialized form of radiation therapy that uses a precise, highly localized photon beam to treat small tumors. Although powerful and precise, the technique comes w...
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In conventional external beam radiation therapy, also called teletherapy, a linear accelerator (LINAC) is used to deliver a radiation beam to a target region inside a patient. The radiation is deliver...
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Computed tomography (CT) systems are used for medical imaging and produce images by measuring the loss in an X-ray beam’s strength. These measurements are used to reconstruct an image in 2-D or 3-D...
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Radiation therapy is a technique used to deliver ionizing radiation to a malignant tumor or other target tissue to control the growth of abnormal cells. If a critical structure such as a tissue sensi...
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In radiation therapy for breast cancer, the patient lies face down on a table with one breast compressed and the other pendant through a hole in the table where it is exposed to radiation. The skin is...
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External beam radiation therapy is a tumor treatment technique that directs one of more high-energy radiation beams to the tumor. External beam radiation systems treat tumors with multiple X-ray fan ...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. External beam radiation systems treat tumors with multiple X-ray fan b...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. External beam radiation systems treat tumors with multiple X-ray fan b...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. External beam radiation systems treat tumors with multiple X-ray fan ...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. Advanced external beam radiation systems treat tumors with multiple X-...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. Advanced external beam radiation systems treat tumors with multiple X-...
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External beam radiation therapy commonly is used to treat cancer patients by directing one or more beams of high energy radiation, such as X-rays, toward a tumor.  Current photon-based radiation ther...
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Proton therapy is a form of external beam radiation therapy in which a particle accelerator is used to target a tumor with a beam of protons. Protons have a certain range, or stopping power, and few p...
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Conventional external beam radiation therapy is used for cancer treatment by irradiating a defined target region using beams of ionizing radiation. The purpose of a treatment plan is to accurately ide...
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External beam radiation therapy is a tumor treatment technique that directs one or more high-energy radiation beams to the tumor. Advanced external beam radiation systems treat tumors with multiple x-...
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Before, after, and during radiation therapy, images of the patient are generated to ensure that radiation is delivered to the tumor site’s precise location. Instruments known as portal imaging devic...
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One problem associated with intensity modulated radiation therapy (IMRT) is that the precise position, shape and size of the target often changes between the time the plan was developed and the actual...
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