80 results about "Radiosurgery" patented technology

A system for delivery of high dosage of radiation to a targeted spinal area is provided. This is accomplished by a system which provides for precise immobilization and positioning of the treated spinal area during dose planning and treatment via stereotactic radiosurgery. Advantages of the system include convenience to the patient, enhanced efficacy, and reduced risk of radiotoxicity to non-target tissues.

Systems and methods for providing radiosurgery treatment to a patient by combining methods from both traditional radiosurgery and radiotherapy are disclosed. A dose sufficient to kill tissue is applied to a target area while a steep drop off, or gradient, is provided at the border between the target area and adjacent areas so that other portions of the brain or nearby structures or organs are not damaged. The treatment plan is optimized by using both measures known in the art along with a new gradient index or curve that indicates the amount of the drop off at the border between the target area and the surrounding tissues.

An apparatus and method for subsequent optimization of radiosurgery and radiotherapy is provided. The invention includes administering a metalloporphyrin to the patient, and then creating a 3-dimensional mapping of tissue through use of PET or SPECT. Malignant and pre-malignant tissue has an affinity for the metalloporphyrin. During treatment, real-time images are also provided which are compared to the previous 3-dimensional mapping. Creation of the real-time images is also achieved through PET or SPECT wherein a metalloporphyrin is administered to the patient. Total administration of radiation is calculated by summing radiation from the inetalloporphyrins and from the radiosurgery / radiotherapy. The amount of radiation delivered by the metalloporphyrins and by the radiosurgery / radiotherapy are adjustable based on a patient's response to the dual delivery.

New techniques for radiotherapy and radiosurgery are provided. In some aspects of the invention, multiple sources of radiation with a frequency, phase and polarization that are projected to constructively interfere at a treatment target are provided. In other aspects, hardware directs multiple radiation sources from the same side of a treatment target, and focuses the initiation of substantial interference on a leading structure in the target. In other aspects, refractive models updated by live feedback are used to improve dosage distribution by, among other things, optimizing the number, length, superposition overlap, angle and nature of radiation beams. In additional aspects, interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are also provided, to improve dosage accuracy and avoid collateral damage.

A radiosurgery system is described that is configured to deliver a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, other disorders or tissues of a body are treated with the dose of radiation. In some embodiments, the target tissues are placed in a global coordinate system based on ocular imaging. In some embodiments, the target tissues inside the global coordinate system lead to direction of an automated positioning system that is directed based on the target tissues within the coordinate system. In some embodiments, a treatment plan is utilized in which beam energy and direction and duration of time for treatment is determined for a specific disease to be treated and / or structures to be avoided. In some embodiments, a fiducial marker is used to identify the location of the target tissues. In some embodiments, an eye is held with force and in alignment with the system. In some embodiments, the device automatically turns off with excessive movement outside of alignment along an axis of the eye. In some embodiments, radiodynamic therapy is described in which radiosurgery is used in combination with other treatments and can be delivered concomitant with, prior to, or following other treatments.